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5 of the best watermakers: From ERD to high pressure units

• February 28, 2023

When it comes to watermakers picking the best for you is crucial with a key decision being the type you go for an its energy usage.

Watermakers – technically known as desalination units – use a process called reverse osmosis (RO) to make drinking water. By forcing salty water at a high pressure against one side of an RO membrane, fresh water will slowly seep through, leaving the salt and bacteria behind. The output is notably devoid of minerals, but the taste can be a little strange at first.

There are two main types of watermaker. High-pressure pump watermakers are fast, but they aren’t the most energy- efficient way of creating clean water. They are usually tuned to produce 60 litres per hour or more but can draw upwards of 500W and while there are 12V versions, they typically use mains voltage pumps and are better suited to being run from a generator than a battery bank.

They’re designed to fill your tanks quickly so you don’t have to run the generator for long. Mechanically, they’re simple, and apart from the high-pressure pump there are no moving parts to go wrong.

The alternative method is a Clark pump watermaker, also known as an energy recovery device (ERD). This uses a fast-running but much lower-pressure pump which needs less power. To obtain the high pressure required, the pressure in the discharge water is harnessed by a couple of reciprocating pistons and used to boost the inlet pressure. It takes a few minutes to build up pressure and during that time the output is slow and not very clean.

Best watermaker: ERD units

Schenker Zen 30

I’ve yet to meet the owner of a Schenker Zen 30 who isn’t an evangelist for this machine. The Italian brand has been evolving its range since 1998 and offers a three-year warranty. Measure twice – the pump and membrane make up a bulky unit.

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Osmosea units

I love the design of the Osmosea units, which only have one moving part and are one of the cheapest ERD units out there, although reliability is poor, due to the materials used. Cheap second-hand ones are often available, so worth considering if you don’t mind doing a bit of engineering.

Buy it now from Osmosea

Spectra Catalina

While not flawless, this has one of the best build qualities. You’ll find dealers in remote locations, but expect a hefty bill for parts and labour.

It’s a modular design which makes installation easier, but while none of the modules are huge, there are a lot of modules.

Buy it now from GDS

Best watermaker: High pressure units

SeaWater Pro

SeaWater Pro grew out of a garage project using a pump from a Karcher K4 power washer and a garden hose timing unit, but they’ve come a long way since then. Their latest units now use stainless steel pumps which, unlike Karcher pumps, are designed specifically to propel saltwater.

Buy it now from SeaWater Pro

French brand Dessalator uses beautifully over-engineered pumps with a simple user interface control. Despite being a high-pressure system, they offer a couple of 12V versions, the smallest drawing around 30A and rated at 30 litres/hour. They are very pricey, but the only running costs for years will be pre-filters.

Buy it now from Dessalator

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Home » Blog » Gear » Watermakers: a guide to marine desalinators and making water on a boat

Watermakers: a guide to marine desalinators and making water on a boat

By Author Fiona McGlynn

Posted on Last updated: March 23, 2022

There’s something magical about a watermaker—at least that’s how I felt after we installed one on our boat. That may sound overblown, but think about it: watermakers transform salt water into fresh water, providing a near-endless supply of potable water for drinking, bathing, and cleaning! THAT my friends is an amazing piece of technology!

(If you don’t share my enthusiasm, try going without a shower for a few days and you’ll begin to see my point).

Having experienced living on a boat and cruising, both with and without a marine desalinator, I can attest that it’s a game-changing piece of gear. However, you definitely don’t need one to go cruising. There are plenty of low-tech ways to collect and make water on a boat.

Marine desalinators do offer some major benefits: there’s more water for showers, it’s easier to travel farther afield, you can spend more time in a remote location. However, these benefits have to be weighed against the drawbacks: namely a hefty price tag and ongoing maintenance.

Deciding whether a watermaker is right for you will come down to the type of cruising you’re doing, how much water you need, and your budget. Read on to learn about the pros and cons, costs, and key features of marine watermakers.

Table of contents

• 1 How does a watermaker work?
• 2.1 Benefits
• 2.2 Drawbacks
• 3.1 Powered or handpump
• 3.2 Electric or engine drive
• 3.3 Energy recovery watermaker
• 3.4 Modular, self-contained, and portable watermakers
• 3.5 Automatic flushing systems
• 3.6 Automatic Pressure Regulation and adjustable pump speed
• 3.7 Remote control panels
• 4 Top watermaker brands

How does a watermaker work?

A watermaker on a yacht converts seawater into fresh water through a process known as reverse osmosis (RO). A high-pressure pump pushes seawater through a semi-permeable membrane that filters out salt, organics, and bacteria. The fresh water is pumped into your water tanks while the remaining brine bi-product is discharged over the side of the boat, back into the ocean.

Marine watermakers: the benefits and drawbacks

Less water rationing.

When we started our 13,000 mile trip across the Pacific, we didn’t have a watermaker. We were on a tight budget and decided to prioritize other pieces of equipment like a life raft and wind vane.

As a result, we became experts in conserving water on a boat . We would carefully ration out water for washing dishes, taking showers, and even brushing our teeth!

After getting a watermaker we became far less meiserly because we knew we could always make more water if we needed to. It was a relief to not be constantly thinking about how much water we were using over the course of a day.

That being said, we couldn’t relax completely. We had to keep our tanks topped up, so as not to run the pump dry. We also always carried potable water in reserve, in case our watermaker broke in the middle of a long passage.

More luxuries

Can’t live without a proper shower? A boat water maker can make water-intensive luxuries like freshwater deck washdown, freshwater flushing heads, laundry, daily showers, and even baths, a possibility.

As great as this sounds in theory, we were surprised to find that we didn’t indulge in more showers after we got the watermaker.

We continued to use a hand pump pesticide sprayer to shower on deck despite having a watermaker and shower below. While some of this came down to habit, we also disliked running our engine (and consuming diesel) just to run the watermaker.

No hauling water

For us, this was by far the greatest benefit of having a watermaker!

While cruising in the US and Canada, we could refill our water tanks at a dock or marina. This was a minor hassle because it involved pulling up the anchor and docking the boat.

In Mexico, it was more challenging to get water. We would fill 5-gallon jugs at the local water purification plant in town and wheel them back to our boat on a collapsible dolly.

It often took a couple of trips with the dolly and dinghy to fill our water tanks. Oh, and we broke our dolly, twice!

We realized that if we wanted to spend more time exploring, and less time hauling water, we would have to invest in a watermaker. When we reached La Paz, Mexico we bought a refurbished watermaker, and we were so glad we did!

Our sailboat water maker gave us the gift of time, especially in places like Mexico and the South Pacific, where there were limited opportunities to fill water tanks up at the docks. It also saved us paying docking and water fees.

We estimate that our boat water maker saved us anywhere from four to six hours every week, time that we could spend exploring the wonderful places we were visiting.

A clean, safe water source

In places where the drinking water may be suspect, a boat water maker can be a reliable source of safe drinking water (assuming it’s in good working condition!).

More time in remote locations

A watermaker is a great tool if you’re drawn to remote locations where you might be the only boat in the anchorage.

It wasn’t until we reached Los Frailes, a secluded village on the Baja, that we really began to think about buying a watermaker.

There we were in an idyllic anchorage, surrounded by spectacular hiking and fishing. There was only one problem—every two days we had to walk 10 miles into town with our water jugs and hope that some kind samaritan would give us a lift back to our boat.

Before having a watermaker, we’d often leave a place we loved just because we needed to fill up our tanks. With a watermaker, we were more self-sufficient and could stay an extra few days, or as long as we wanted!

The number one drawback is the cost. We were able to find a refurbished water desalinator for $3,000, which was a great deal but also a considerable slice out of our cruising kitty.

How much does a watermaker cost?

Powered desalination systems for your average recreational cruising boat range from around 3,500 USD to 11,000 USD, with the more expensive options offering higher production (gallons of fresh water per hour).

Ongoing maintenance

Watermakers are yet another piece of boat equipment that needs to be maintained.

The majority of watermaker problems are caused by not using it enough or not using it properly.

If a watermaker is not used for a few weeks, the planktonic organisms in the seawater will die, rot, and clog the membrane and filters. This can eventually damage the reverse osmosis membrane in the watermaker.

For this reason, boat water makers should be used frequently and regularly flushed with fresh water.

Watermaker flushing

Check your manufacturer’s instructions on how to flush.

Rainman recommends flushing the seawater out of the system with fresh water if you are not using the system for more than a day or two. After another week, you need to freshwater flush the system again or pickle it for long-term storage.

Of course, it’s easy to forget, so we made it a rule to freshwater flush our watermaker after every use.

This is one good reason to choose a watermaker with an output that will meet your water consumption needs but not exceed them. If you’re using it every second day, you won’t have to try and remember whether you’ve flushed it or not.

Flushing a watermaker is relatively simple but it does involve a bit of work. We used a system with buckets of fresh water to flush our system and it generally took about 5 minutes.

You can also buy systems that automatically flush your watermaker at pre-determined times—even when you’re away from the boat (more on autoflush systems below).

Whatever you do, don’t use chlorinated water to flush as it will destroy reverse osmosis membranes. It’s possible to buy a carbon filter to remove chlorine from water sources at the dock.

Pickling a watermaker

If you don’t plan on using your watermaker for a while it needs to be “pickled” with a special biocide to prevent growth and buildup which could render your reverse osmosis membrane totally useless.

A watermaker should also be pickled every so often to chemically cleanse the membrane.

In addition to flushing and pickling, you will also need to clean out and replace the raw water pre-filters.

Operating costs

When properly cared for, a membrane should last five to ten years. If you don’t properly flush or pickle your watermaker, it can be a lot sooner and membranes aren’t cheap, generally costing in the range of 200-700 USD.

You’ll also need to purchase pre-filters and pickling solution, which are generally quite affordable. It’s also a good idea to carry spare parts

Power consumption

Watermakers can be real power hogs. When Practical Sailor tested a dozen DC watermakers they found they could draw anywhere from 12 to 48 watts per gallon, a huge range in efficiency!

According to Practical Sailor, “for maximum efficiency none of the systems drawing 15 amps or more should be operated without running the engine at the same time.”

We had to run our engine for hours to fill our tanks, which was annoying (and loud) when we were hanging out at anchor and also used up another finite resource—diesel fuel.

In our view, this was the single largest drawback to having a watermaker aboard.

Keep in mind that your power supply will determine what type of watermaker you buy. You may need to upgrade your electrical panels, get a generator or high-powered alternator, add solar panels, or increase battery capacity to supply the demand.

You can’t make water everywhere

While watermakers offer great flexibility and freedom, you can’t just make water in any old spot. If you make water in a polluted marina or anchorage, you’ll risk clogging up your filter. Most cruisers will head out to open water to ensure the saltwater they’re using is as clean as possible.

Key features to look for

Powered or handpump, handpump watermakers.

Handpump watermakers tend to be small and portable, the perfect thing to keep in your ditch bag in the event of an emergency. They’re less expensive than powered watermakers and produce far less water, usually around one gallon per hour.

Though I do know cruisers who have used a handpump watermaker for everyday use, they typically tend to be kept aboard for survival situations.

Powered watermakers

Powered watermakers run off your electrical supply or engine and can produce tens of gallons of water per hour. They tend to be a lot more expensive, but they’re productive enough to replenish your tanks.

Electric or engine drive

Powered watermakers can be electrically driven, by AC or DC, or run off the boat engine.

AC watermakers

AC models can produce in the range of 20-60 gph and are ideal for cruisers with an AC generator or alternator on board. They can also be used on boats with ample solar or wind sources and an inverter.

DC watermakers

DC watermaker systems typically produce in the range of 10-30 gph and are ideal for boats with solar power or 12V battery power.

Engine-driven watermakers

On an engine-driven watermaker, the high-pressure pump is belt-driven. These can produce a considerable amount of water, even on small engines. For instance, engine-driven units produce between 20-60gph, twice what a DC unit can produce.

Energy recovery watermaker

DC watermakers have become more efficient in recent years thanks to energy recovery systems (ERS). When the water leaves the watermaker it is still under pressure. ERS uses a set of valves to make use of this excess pressure to help drive the pump, which can reduce energy consumption by as much as 80 percent.

Modular, self-contained, and portable watermakers

Watermakers can be bought as modular, self-contained, and portable units. Choosing the right one may depend on your boat size and layout and whether you’re comfortable installing the watermaker yourself.

Modular units

Modular units come as several separate components that you can mount and connect yourself. This obviously offers a lot more flexibility and is particularly useful on smaller vessels where you may not have a lot of space. The downside is that these systems will take longer to install.

Self-contained units

Self-contained units arrive pre-assembled. While easier to install, they’re often bulkier and best suited to a bigger cruising sailboat with a large engine room.

Portable watermakers

Portable watermaker systems, like the Rainman watermakers, are entirely self-contained. Their compact design makes them easy to move and stow and you can completely avoid a permanent installation.

Simply put the intake and brine discharge hoses overboard, the freshwater hose in your water tank and you’ll be making water in no time.

If you race, have multiple boats, or plan on selling your boat, a portable watermaker is a great option because it can be easily moved from boat to boat.

If we were to buy another watermaker, we would probably opt for a portable one.

Automatic flushing systems

Automatic flushing systems use your boat’s freshwater supply to flush the watermaker for several minutes every few days. These systems require additional components (e.g., a timer, carbon filters, and a motorized valve) and installation but they take a lot of the maintenance out of having a watermaker onboard.

Automatic Pressure Regulation and adjustable pump speed

Your watermaker’s efficiency will be affected by the temperature and salinity of the water you’re cruising in. Cold and highly saline waters (e.g., in the high latitudes) will be more work for your watermaker, so it will take longer to purify.

Some units feature Automatic Pressure Regulation (APR) and adjustable pump speed which can help compensate for fluctuations in water temperature and salinity.

Remote control panels

Some watermakers have the option of a control panel which allows for easier access and remote control. Control panels tend to have a fairly simple interface with just a few gauges but may include a salinity sensor—so you can keep tabs on water quality—and auto-flush integration—so you can flush your watermaker with the flip of a switch.

Top watermaker brands

If you’re considering buying a watermaker for a boat, here are some of the top brands to consider.

• Cruise RO Watermaker
• Echotec watermakers
• Horizon Reverse Osmosis (HRO)
• Sea Recovery watermakers
• Schenker watermakers
• Spectra watermakers

Fiona McGlynn is an award-winning boating writer who created Waterborne as a place to learn about living aboard and traveling the world by sailboat. She has written for boating magazines including BoatUS, SAIL, Cruising World, and Good Old Boat. She’s also a contributing editor at Good Old Boat and BoatUS Magazine. In 2017, Fiona and her husband completed a 3-year, 13,000-mile voyage from Vancouver to Mexico to Australia on their 35-foot sailboat.

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5 Best Watermakers for Sailboats

Last Updated by

Daniel Wade

June 15, 2022

With the right Watermaker, the ocean becomes an almost immeasurable supply of fresh and clean drinking water to keep you hydrated during your offshore sailing adventures.

Many sailors do spend a lot of their time and money on various parts of the sailboat including the sails, engine, electronics, and generators especially when preparing for long-distance voyages.

While there's absolutely nothing wrong with this, they often overlook one crucial part of general human survival: having an ample supply of fresh drinking water.

Whether you have freshwater drinking tanks on your sailboat or planning to cruise in areas where you can easily access clean drinking water, the hassle involved in having to come to the dock to fill the water tanks can be quite overwhelming.

This is exactly why you need to find the best watermakers for sailboats.

Like many other nautical technologies, watermakers have significantly advanced in the last few decades to become very efficient and more reliable. They're no longer a luxury on your sailboat but a necessity. Better still, watermakers have become relatively affordable and are meant to keep you hydrated as you explore areas that do not have clean and fresh drinking water.

In this article, we'll take a look at how watermaker systems work, highlight its benefits, and highlight the best sailboat watermakers on the market right now. At the end of this read, you should be able to choose the best watermaker for your sailboat.

Table of contents

Benefits of Having a Watermaker on Your Sailboat

The freedom and security that come with having full water tanks on your sailboat are of immense importance, especially if you're cruising in an area where fresh drinking water is hard to come by and quite expensive when you do. As such, having a watermaker aboard your sailboat is no longer a luxury like it used to be in the past. With a steady supply of fresh and clean water, your life on the sailboat will be a lot better. This is because you'll have enough clean water to drink, cook, wash, and shower, which is beneficial if you want to enjoy your sailing adventures.

Honestly speaking, many sailors do not actually need a watermaker. Well, if you're planning to sail just near the shores, then there's a chance that you can easily access fresh and clean water by the dock. But this can be limiting if you've been dreaming of going off the grid and sailing to some exotic and unknown places in the world.

With that in mind, a watermaker makes a lot of sense to most sailors. You won't have to worry about having to carry aboard gallons of fresh water for cooking and drinking during your voyage. You won't have to treat freshwater as a precious commodity that must last until you can refill at the next port. With a watermaker, you can simply go ocean crossing without worrying about running out of water.

A watermaker allows you to have a steady supply of fresh and clean water to keep everybody well-hydrated and healthy. You can clean the water anytime you feel like and all you have to do is replace the filter once in a while and you'll be good to go. In essence, a watermaker is probably one of the most important equipment to have aboard your sailboat, so installing it is of great importance if you're a serious sailor.

The Basics of Modern Marine Watermakers

Modern marine watermakers essentially follow the principle of reverse-osmosis to produce pure, drinking water from seawater. During this process and through very high pressure, seawater is forced through a semipermeable membrane that only allows freshwater molecules to pass through it but not salt, bacteria, or any other organic material. The newly made pure, drinking water is then piped to the sailboat's water tanks while the leftover (brine) is discharged overboard.

Even though marine watermakers may differ in the type of pump that's employed and how it is driven, this is one of the most important features in every watermaker. In most cases, water can be electrically pumped or powered directly off the boat's engine. If you have an AC generator or alternator on your boat, it would make much sense to use the AC output to drive the watermaker directly. You can also choose the DC-powered models if you rely on renewable energy from solar or wind. Alternatively, you can still go for AC-powered watermakers but you'll have to buy an inverter.

All in all, DC-powered watermakers are more efficient since they integrate a power-saving energy recovery system (ERS). You must, however, keep in mind that your energy consumption levels might be quite high if you're sailing in colder and saltier areas. This is because the water purification process might be a bit slower in such areas. As such, you should consider investing in a more high-powered watermaker system if you will be sailing in colder and saltier areas than if you're planning to sail more in warm and less salty areas.

As far as an engine-driven watermaker is concerned, you should mount the high-pressure pump on the engine so that it can be belt-driven using an automatic clutch. An engine-driven watermaker should be your first option if you want large quantities of fresh drinking water. This is more productive than AC or DC-powered watermakers. Even with a relatively small engine, this setup has an automatic regulator that constantly pumps the water. With that in mind, engine-driven watermakers are ideal if you want to reduce your energy consumption. To put it into perspective, an engine-driven watermaker can lower energy consumption by an enormous 80%, especially when compared with conventional AC or DC-powered watermaker systems.

How to Choose the Best Watermaker for Your Sailboat

There are many factors to consider when looking for the best watermakers for your sailboat. Here are the most important things to consider.

Your Freshwater Needs

One of the most important things to consider before spending your money on a watermaker is your freshwater needs. What quantity would be enough to keep you going on your sailing adventure? While the quantity might differ from one sailor to the other or from one boat to the other, you should consider the number of gallons that a particular watermaker can produce per day. This will help you in choosing the ideal watermaker; a model that will ensure that you never run out of water. Do not underestimate your water needs, especially if you're planning to sail with your children or if you're planning to stay on the boat for an extended period of time.

Do you have enough space on your vessel to accommodate the type of watermaker you're looking to buy? While most watermakers are designed to fit in the smallest of space, you should consider the actual size of the watermaker and find out whether you have enough space on your vessel to fix it.

Watermakers can run on electricity, renewable energy such as wind and solar (if you have them on your vessel), or both. When looking for the perfect watermaker, you should consider how to power it and whether or not the watermaker has low-energy consumption, which is definitely a great feature. Again, there are also engine-driven watermakers, so it's important to know exactly what you're going for.

Maintenance

Watermakers have a reputation for being difficult to maintain. Fortunately, the equipment and components have improved in the last few years so you should go for a model that's easy to maintain. You should use the watermaker in water bodies that look good, You should avoid using the watermaker in dirty harbors as you may have to change the filters every so often or even damage your watermaker altogether.

Best Watermakers for Sailboats

Let's take a look at the best watermakers available on the market right now.

The Ultra Whisper

Engineered by limited electrical options that can run on either DC or AC, THE Ultra Whisper by Sea Recovery is one of the best watermakers currently available on the market. In addition to being very quiet, this watermaker features an automatic operation that requires very minimal operator adjustment.

This watermaker is ideal for small powerboats and sailboats since it can serve as an efficient water supply. This model boasts about a 75% reduction in power consumption, especially when compared to other models.

• ‍ Smooth and quiet water production
• Can produce up to 2,280 liters per day
• Ideal for small boats
• It is energy efficient
• ‍ It might not be perfect for large boats

Echotec Watermaker

If you want a watermaker model that can produce 60 liters per hour flawlessly and with no maintenance apart from changing the filters, look no further than the Echotec Watermaker. This model is designed for ultra-reliable performance and easy customer installation.

This watermaker is made from high-quality components that can withstand the continuous harsh marine environment, making it one of the most durable watermakers on the market. This is essentially a series of modular watermakers ranging from 12-volt to 24-volt DC-powered models. They bring forth energy efficiency, a computerized energy recovery system, and ultimate reliability to ensure that you never run out of fresh drinking water while out there on the sea.

• ‍ Energy efficient
• Cost-effective
• ‍ Comes with a very low speed
• Not ideal for large boats

Spectra Katadyn PowerSurvivor

As a compact and energy-efficient watermaker, the Spectra Katadyn PowerSurvivor is arguably the most affordable watermaker currently available on the market. We are talking about a model that only requires 4 amps to desalinate water for your sailboat. It can produce 1.5 gallons of fresh drinking water per hour, which is an excellent return for a watermaker of its size.

It is also one of the most portable watermakers around. You can choose to either install it permanently or temporarily in case you want to take it somewhere else. This portability is also essential if you're looking for a space-saving model that can fit in the smallest of compartments. Its simple but rugged design is essential in ensuring that it can perform at its best even in harsh marine conditions. In terms of its power capabilities, this is the only model on the market that will convert to a hand-operated system or manual power if there's a power shortage.

• ‍ Portable and lightweight
• Rugged design to withstand harsh marine environments
• Efficient and reliable
• Can revert to manual power if there's a power shortage
• Perfect for off-grid sailing
• ‍ Gasoline or diesel can easily damage the semi-permeable membrane

Village Marine - Little Wonder Series

Whether you're looking for a watermaker for your small sailboat or looking for a watermaker that can efficiently serve those huge yachts, the Village Marine Little Wonder Series provides everything. This model is meant for experienced sailors who are looking for various capacity options. This watermaker weighs just about 69 pounds but can produce nearly 180 gallons of fresh drinking water each day.

Designed with a low RPM high-pressure pump, this model remains one of the most efficient and economical watermakers on the market. That's not all; this watermaker is designed with corrosion-resistant features and is one of the most serviceable watermakers in the game. It is reliable, quiet, and portable; all factors that make a watermaker great.

• ‍ Easy to operate
• Corrosion-resistant
• Easy to maintain
• Quiet and versatile
• ‍ It doesn't have automatic adjustment controls

Ventura 150 Watermaker

This is one of the most versatile watermakers on the market. It can use both electricity and renewable energy. This model is engineered to be lightweight and energy-efficient and its compact and modular design makes it a great option if you're looking for a watermaker that's easy to use and install in confined spaces.

The Ventura 150 watermaker is highly efficient as it can produce over 6 gallons of water an hour, which makes it quite perfect for small vessels. This sailboat watermaker features a controller that allows you to operate and monitor the device remotely. It also has the auto store button that will automatically flash the system after every five days.

This watermaker is quiet and surprisingly compact despite its ability to produce about 150 gallons of water per day. It also gives you the option of going for the automated manual or manual model.

• ‍ Very versatile
• Can use both electricity and renewable energy power
• It is smooth and quiet
• It is compact and lightweight
• ‍ The manual model has analog controls

To this end, it's easy to see that having an ideal watermaker aboard your vessel is one of the first crucial steps towards being self-sufficient and sustainable. With a watermaker, you'll be able to access fresh drinking water at all times when sailing even in far-flung places. Most of these models are well-constructed and incorporate some of the best technologies that make them efficient, reliable, and easy to install, use, and maintain.

So when it comes to choosing the best watermaker for your sailboat, it may all come down to what is ideal for you in terms of energy consumption, efficiency, the quantity of water produced, among many other things. With an ideal watermaker, you can remain off the grid for as long as you want without ever worrying about running out of water and this is of great importance in enjoying your sailing adventures.

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I've personally had thousands of questions about sailing and sailboats over the years. As I learn and experience sailing, and the community, I share the answers that work and make sense to me, here on Life of Sailing.

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Do You Need a Watermaker for Your Sailboat?

• By Jen Brett
• Updated: October 2, 2019

I remember, in the not too distant past, when having a watermaker aboard a cruising boat seemed to be the ultimate luxury. Plenty of sailors considered them too expensive and complicated. Fortunately times have changed. With improved technology and a range of price points on the market, now even average cruising boats of modest means carry a reverse-osmosis system. And really, is there anything that feels better after a day spent sailing and swimming than a hot shower? The freedom and security that come with full water tanks are also a nice bonus, particularly if you’re cruising in an area where fresh water is difficult to come by and pricey when you do.

Choosing a Watermaker

As with any major system, there are many factors to consider when you choose a watermaker. You’ll need to figure out your freshwater needs, the space you have available for the system and how you’re going to power it . Generally speaking, in a reverse-osmosis desalination system the raw water is run through a series of pre-filters, and then a high-pressure pump moves the water through one or more membrane housings. The wastewater, or brine, is released overboard and the product water goes into your water tanks.

Since all of the watermakers that are currently available for cruising sailboats use this process for desalination, the major differences between the systems are how you power the high-pressure pump and the user interface. Powering options include 120/220-volt AC, 12- or 24-volt DC and engine/belt driven. All have their pros and cons.

“The first question I ask a potential customer is ‘Will your boat have a ship’s generator?’” said Rich Boren of Cruise RO Water. “If they plan to have a generator, then the decision to go with a 120-volt high-output watermaker seems natural. While running the generator for battery charging and other loads two to three times per week, they can keep their water tanks full without having to make generator runs just to make water.”

A 12-volt system, such as the Spectra Catalina 300 Mk II or the Horizon Reverse Osmosis Seafari Quest, makes a lot of sense for smaller cruising boats since they don’t need a generator to run and have fairly miserly power consumption. On a breezy, sunny day, a solar panel and/or a wind generator will likely keep up with the demand. “The only difference between 12-volt DC low-output and 120-volt AC high-output watermakers is how the high-pressure pump brings seawater up to the 800 psi needed to drive fresh water through the reverse-osmosis membrane,” Boren said. “The membrane and support equipment, like pre-filtering and plumbing, are the same.”

These systems typically produce anywhere from about 6 to 16 gallons per hour, and some units can do so for about a 1-amp-per-gallon power draw.

“Many smaller sailboats, under 45 feet or so, often utilize solar panels,” said Berkeley Andrews of Parker Hannifin, which produces Sea Recovery, Horizon Reverse Osmosis and Village Marine watermaker systems. “Their entire electrical backbone consists of 12-volt or 24-volt. So they must have a watermaker that can operate on low voltage. These customers have limited amp hours on their batteries, so all of their equipment must be suited to handling this.”

In choosing a watermaker, Bill Edinger, owner of Spectra Watermakers, said to be realistic about water needs. “When helping customers decide which system is right for them, first we like to determine their approximate water usage with questions like ‘How many people are aboard normally? Are you going to be living on the boat full time? Do you have a washing machine? Any children? Are you going to be cruising full time or leaving the boat for extended periods?”

A common error people make is choosing a watermaker that is too small for their needs. “The most common mistake I see cruisers making in their watermaker purchase decision is underestimating how much water it will take them to cruise comfortably,” Boren says. “I’m not talking about the minimal amount of water it takes for the crew to stay alive, because there is a big difference between staying alive and comfort. Selecting a watermaker that will only meet their minimal drinking-water needs but not keep up with the comfort needs of the crew can lead to crew tensions and feeling like camping rather than cruising.”

Remember that “watermakers are rated in gallons of production in a 24-hour period,” Edinger said. “So a 300-gallon-per-day watermaker system sounds like a lot of water. The important thing is that it produces about 12 gallons per hour. Normally a system like this will be run three to four hours per day if power is not a critical issue, in this case producing 36 to 48 gallons of water. It’s better for a system to run for a few hours every few days than an hour every day.”

Watermakers for Small Boats

If space is at a premium, consider purchasing a modular system instead of an enclosed one. In a modular system, the components, such as the membranes and filters, can be mounted separately. Another power source for the high-pressure pump is the boat’s diesel engine. In these engine-driven setups , the pump and an additional pulley are mounted on a custom bracket next to the engine. The watermaker can then be run while motoring or using the engine to charge the batteries.

While engine-driven watermakers can produce a large amount of water, 20 or more gallons an hour on average, the downside is that the installation can be more complex than for other systems. “Unlike the 12-volt DC or 120-volt AC watermakers, where you simply bolt the high-pressure pump down and then run the wires and plumbing hoses, the hardest installation aspect of an engine-driven watermaker is finding space. Some boats simply have no room in the engine compartment to mount the 5-pound pump with a 7-inch pulley on the engine while still leaving access to other engine parts that need to remain serviceable,” Boren says.

A relative newcomer to the marine market, the portable watermaker is a good solution for cruisers who want the convenience of a watermaker but don’t want to permanently install one. The Rainman is one such system that is available as a self-contained unit driven by a gasoline-powered Honda motor, or as a 115-volt AC-powered unit. “The bulk of our gasoline-powered system customers are sailing yachts between 30 and 50 feet,” said Ron Schroeder of Rainman Desalination. “Our customers seem to prefer to have a simple and somewhat manual system over one that relies on control panels, software and solenoid valves. We are also attractive to those customers who have had bad experiences with the installation process of an installed system.”

The Spectra Passport is another portable system. Edinger said it has already proved popular with offshore race crews and cruisers who need a watermaker for only a limited time.

Maintenance for Watermakers

Watermakers have long had a reputation for being difficult to maintain, but the equipment has improved over the years and overall, routine maintenance isn’t more challenging than with other onboard systems. “The best rule of thumb is to operate the watermaker in water that looks good,” Andrews said. “There are a few factors in the feed-water condition that come into play. Operating a watermaker in dirty harbors will most certainly result in repeated pre-filter changes and a clogged sea strainer. If you have extra filters on board, you can get by, but it’s not recommended. The environment in the open ocean and remote anchorages is much better. Also consider how shallow the water is where you’re anchored. Sometimes there can be a lot of tidal movement, which can kick up fine particulate and sediment. This too can also contribute to more frequent filter changes and even damage other components. A nice option is an automatic freshwater flush, which will rinse the watermaker’s membrane element after use. It helps keep the membrane vessel housing free of any biological growth that could foul the membrane and reduce your ability to produce fresh water.”

Whatever system you choose, with proper use and maintenance you can expect years of service from your watermaker. And plenty of hot showers.

Jen Brett is a CW associate editor. This article first appeared in the February 2015 issue of Cruising World.

Aqua Marine: www.aquamarineinc.net

Blue Water Desalination: www.bluewa​terdesalination.com

Cruise RO: www.cruiserowaterandpower.com

Dometic Marine Sea Xchange: www.do​metic.com

ECHOTec: www.echotecwatermakers.com

FCI Watermakers: www.filtrationconcepts.com

Horizon Reverse Osmosis (HRO): www.hrosystems.com

Katadyn: www.katadyn.com

Rainman: www.rainmandesal.com

Sea Recovery: www.searecovery.com

Schenker Watermakers: www.schenkerwa​termakers.com

SK Watermakers: www.skwatermakers.net

Spectra Watermakers: www.spectrawater​makers.com

Village Marine Tec: www.villagemarine.com

Watermakers Inc.: www.watermakers.com

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• All about water makers: Turning sea into freshwater magic

Sailors embark on adventures that take them across vast oceans and distant horizons. In the midst of these journeys, one essential requirement stands out—the need for a reliable source of freshwater. This is where water makers for sailboats come to the rescue. These ingenious devices allow sailors to convert seawater into pure, drinkable freshwater, ensuring they remain self-sufficient during extended voyages. In this article, we will introduce you to the top 5 water makers for sailboats, each chosen for its exceptional performance and reliability.

1. Spectra Ventura 150C

Capacity: 6.3 gallons (24 liters) per hour

The Spectra Ventura 150C is a compact and efficient water maker designed with sailboats in mind. Its energy-efficient operation ensures a steady supply of freshwater without draining your boat's power reserves. The Ventura 150C is known for its simplicity and ease of use, making it a popular choice among sailors seeking hassle-free freshwater generation.

2. Katadyn PowerSurvivor 40E

Capacity: 1.06 gallons (4 liters) per hour

The Katadyn PowerSurvivor 40E is a reliable companion for long-distance sailors. With its compact size and energy-efficient design, it can easily fit into tight spaces on a sailboat. The 40E is renowned for its durability and ability to withstand the harsh marine environment, ensuring a consistent supply of freshwater.

Read our top notch articles on topics such as sailing, sailing tips and destinations in our Magazine .

Enjoy a worry-free cruise.

3. Sea Recovery Aqua Whisper Mini

Capacity: 8.3 gallons (31.5 liters) per hour

The Sea Recovery Aqua Whisper Mini is a high-capacity water maker suitable for larger sailboats and yachts. Its advanced technology allows for efficient freshwater production while conserving energy. Sailors appreciate its user-friendly interface and low maintenance requirements, making it an excellent choice for extended sea journeys.

4. Rainman Watermaker

Capacity: Customizable options up to 37.9 gallons (143 liters) per hour

Rainman offers a range of water makers tailored to sailboats of all sizes. What sets Rainman apart is its versatility, allowing sailors to choose between electric, gasoline, or even hand-operated systems. This adaptability ensures a consistent supply of freshwater, regardless of your sailboat's power source.

5. Schenker Modular 60

Capacity: 15.8 gallons (60 liters) per hour

The Schenker Modular 60 combines efficiency and compactness, making it an ideal choice for sailboats where space is at a premium. Its modular design allows for easy installation and maintenance, and it operates quietly, ensuring a peaceful onboard experience. Sailors appreciate its ability to deliver a substantial daily freshwater supply.

Water makers have transformed the way sailors approach long-distance voyages, providing a reliable source of freshwater self-sufficiency. When choosing the best water maker for your sailboat, consider factors such as capacity, energy efficiency, and ease of maintenance. Each of the five water makers mentioned here offers exceptional performance, ensuring that you can quench your thirst for adventure while sailing the high seas. With one of these water makers on board, you'll have the freedom to explore remote destinations without ever worrying about running out of freshwater.

Investing in a quality water maker is an investment in your sailing experience, providing peace of mind and allowing you to focus on the beauty of the open ocean. Whether you're a seasoned sailor or a novice adventurer, having a reliable source of freshwater is an essential step towards making your sailing dreams come true. So, set your course, hoist your sails, and embark on your next great maritime adventure with confidence, knowing that freshwater is never out of reach.

So what are you waiting for? Take a look at our range of charter boats and head to some of our favourite sailing destinations .

FAQs about water makers

Can i use a water maker on any type of boat, how much freshwater can a marine water maker produce per day, are solar-powered water makers practical for long voyages.

DC 12v Marine Desalination System

With the release of the new 12 / 24 Volt Watermaker 200-DML-1, ECHOTec achieved a breakthrough in efficiency for watermakers, utilizing ultra-reliable triplex ceramic plunger pumps.

The ECHOTec. pump is a low revolution (570 RPM) stainless steel version, driven by a highly efficient permanent magnet motor, designed for continuous duty under tropical conditions.

No low reliable and service-intensive energy recovery pumps or irreparable electronic circuits that can stall the entire system are used on any ECHOTec yacht watermaker.

These desalination systems are made without “bells and whistles” for live aboard offshore cruising and racing with peace of mind.

As for all other ECHOTec watermakers, only the highest quality raw materials that have proven to withstand continuous duty in a harsh marine environment are selected for ultimate reliability and lifetime. Therefore, we fabricate all wetted components including the true regulating pressure valve and all high-pressure fittings from high-grade austenitic stainless steel.

For the most economical maintenance and global use, we do not fabricate components to proprietary dimensions. Standard filters, membrane elements, and many spare parts can be obtained anywhere.

Reverse Osmosis performance varies with the feed water temperature and salinity. The rated performance is tested at 26ºC / 80ºF water temperature and a salinity of 35000 ppm  TDS . *Also available in 36 VDC, 48 VDC, 90-96 VDC and 180 VDC **Prices shown do not include shipping, taxes and/or customs duties (if applicable)

144 Volt DC Watermakers for vessels powered with electrical hybrid propulsion systems from Lithium Batteries. Operating window: 144 – 172 Volt at constant working pressure and output

Reverse Osmosis performance varies with the feed water temperature and salinity. The rated performance is tested at 26ºC / 80ºF water temperature and a salinity of 35000 ppm TDS. *Also available in 36 VDC, 48 VDC, 90-96 VDC and 180 VDC **Prices shown do not include shipping, taxes and/or customs duties (if applicable)

How Many Watts Does a Watermaker Use If It’s a 12V Watermaker?

As you can see from the above diagram, the amount of watts that a watermaker uses is directly proportional to how many gallons of fresh water it will be producing. In this case, the amount of power that it produces is calculated in amps.

There is a simple formula to calculate how many watts this 12v marine desalination system uses. The wattage in one amp depends on the voltage of the system. Using the formula for DC conversion: Watts = Amps x Volts, at 120 volts, 1 amp would equal 120 watts. 

At 12.5 volts, 19.5 amps would use 247.5 watts, 27 amps would use 337.5 watts, 38 amps would use 475 watts, and 80 amps would use 1,000 watts. You can use this formula to calculate how many watts you would need to produce electricity and determine if you have the capability to do so. 

What Makes This Model One of the Best DC Watermakers for Yachts?

At the heart of our design philosophy lies a commitment to compact efficiency without compromising on performance. Our system boasts a sleek and space-saving profile, making it an ideal solution for vessels where every inch counts. The 12V power supply ensures seamless integration with your yacht’s electrical system, providing an on-demand freshwater oasis in the open sea.

Beyond its modest footprint, simplicity defines our desalination system—engineered for ease of use. With user-friendly controls and a hassle-free installation process, even novice sailors can effortlessly harness the power of the ocean to meet their hydration needs. This 12v marine desalination system is the best option for people looking to enjoy compact desalination. 

Why Are Small DC Watermakers for Yachts Better?

Small DC watermakers for yachts represent the epitome of convenience and efficiency in on-the-go desalination solutions. Their compact design is a game-changer for yacht owners, allowing for seamless integration into limited onboard spaces. The 12V DC power sources not only align perfectly with a yacht’s electrical systems but also ensure energy efficiency, making these sustainable choices for extended journeys.

Can You Drink the Water From a Watermaker on a Boat?

Absolutely. The water produced by our advanced watermakers on boats is not only safe but exceptionally pure. Our cutting-edge desalination systems effectively remove salt and impurities from seawater, delivering high-quality, potable water for onboard consumption. 

Can You Run a Watermaker While Sailing?

Yes, a 12-volt marine water maker can run while sailing. In fact, many boats can only run electricity when the engine is on, making this a viable solution for many sailors and boaters. By leveraging the vessel’s 12V power system, our watermakers provide a self-sufficient solution, converting seawater into drinkable water during your entire sailing journey.

How Does a Superyacht Get Freshwater? 

If you own a superyacht or are interested in getting a desalinator for sailboats, you might need a larger desalinator, much like a home desalination system. Some of our popular options for superyachts are the following:

• 2400 GDP watermaker
• ECO  Series

Key Features:

• Three years warranty on all parts/components except consumables
• Lifetime warranty on Stainless steel high pressure pump head and R.O. pressure vessel
• Triplex plunger pump for low revolution and pulsation free raw water flow
• Spring loaded automatic pressure regulator for constant working pressure
• Extremely silent operation – no charge/discharge noise
• No energy recovery pumps – No electronic circuits
• High rejection R.O. membranes with a three-year pro-rated warranty
• Separate control panel for remote operation
• High pressure hoses with O-ring sealed stainless steel field attachable fittings
• Modular concept for space saving installation
• Post treatment pH buffer / hardener element saves up to 50% product water. 
• No proprietary equipment – Consumables may be obtained anywhere (except pH buffer element)
• 7 days a week top notch support and after sales care!

More About ECHOTec Watermakers

Echotec Watermakers is an experienced supplier of watermakers. Contact us today to learn more about engine-driven watermakers and 12v marine desalination systems. 

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DC Watermakers for Yachts

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The Basics of Marine Water Makers for Yachts: Understanding How They Work

From this article you will learn what are marine watermakers for yachts, what is their design and basic principles of work. You will also learn how to accurately determine what kind of watermaker capacity is required specifically for your purposes. We will also talk about the advantages and disadvantages of marine watermakers.

Definition of Marine Water Makers for Yachts

Importance of understanding how they work, intake system, pre-filtration system, high-pressure pump, reverse osmosis membrane, post-treatment system, definition of reverse osmosis, how reverse osmosis works in marine water makers, factors that affect water quality, water output measurement, regular maintenance requirements, common issues and troubleshooting tips, disadvantages, introduction.

A seawater desalinator is a technical device that can be used to remove salts dissolved in seawater. The fresh water obtained after the purification procedure can be used not only for, let’s say, a washing machine, but also for cooking and drinking, since simultaneously with desalination, all types of contaminants and impurities, as well as bacteria and viruses, are removed from sea water.

Sometimes the yacht just cannot do without a reliable watermaker on board.

If your yacht's route usually lies in coastal waters with frequent calls into ports and marinas, the need for a watermaker on board will not be acute enough.

But if your plan is to cross the Atlantic, you will need large supplies of fuel, food and water. All this takes up a lot of space and adds weight to the boat. It is possible to reduce the required volumes of fuel thanks to solar panels, food – by using canned products. To be honest, all this will have very little effect on the weight of the boat. But getting rid of full fresh water tanks makes the yacht a ton lighter, or even more, all thanks to the watermaker. Desalination equipment is also desirable if you are going to sail in places where fresh water is scarce or expensive.

In general, desalination equipment is usually used for long-distance crossings. If it breaks down, you cannot hope to quickly arrive at the port and call a service company to repair the watermaker. And not in every port, and even more so in the marina, you can find the right specialist. Therefore, the maintenance of the distiller will most likely be charged with the duties of one of the crew members. And we are not even talking about solo sailing, when the skipper has to be a master of all trades.

Even in coastal conditions, in case of charter voyages, it is better to have a watermaker on board and know how to operate and repair it if necessary.

Components of a Marine Water Maker

Since the article deals with the desalination of sea water for the needs of a small fleet, let us dwell on the characteristics of desalination plants, the operation of which is based on the reverse osmosis process. All components of this system, as well as the distiller itself, must be made of materials that are not susceptible to corrosion: plastic, polymers, ceramics, stainless steel. Consider the main components of this most popular desalination equipment among yachtsmen.

Outboard water enters the desalination system through the inlet valve. The entrance to the intake system must be located below the waterline so as not to trap air.

Pre-filtration is a coarse cleaning – thanks to mesh filters, large contaminants are removed before water enters the fine filters. The pre-treatment unit needs to be checked regularly, so it is better to install it in an easily accessible place, if the design of the water maker allows it.

With the help of a high-pressure pump, the pretreated high-pressure sea water is directed to the reverse osmosis membranes.

Through the microscopic holes of these semi-impermeable membranes, only pure water molecules are forced under high pressure. The number of membranes affects the performance of the desalter.

In order to improve the quality and purity of water, ultraviolet lamps, mineralization tablets and other techniques are used.

The Reverse Osmosis Process

Almost all models of the last decade marine water makers for yachts and boats operate on the principle of reverse osmosis.

The reverse osmosis process for desalination consists of pumping sea water and forcing it through a very thin semi-permeable membrane using a high-pressure pump.

For yacht distillers, membranes are used that allow only pure water molecules to pass through. All other components of sea water remain in the brine, and these are the salts themselves, all types of pollution, as well as microorganisms, including harmful bacteria and microbes. Fresh water enters the storage tank, and the brine with all contents is dumped overboard.

Understanding Water Quality and Output

The whole point of this device is just getting fresh water onboard, but quality and amount of it are not set in stone.

The quality of purified sea water is directly dependent on the performance of the desalination plant. A decrease in the declared performance is a sign of a malfunction of the equipment, which does not guarantee the quality of the water at the outlet, which is promised by the manufacturer of the desalination plant.

In many ways, the quality of desalinated water also depends on the place of its intake; it is better to do this on the high seas and not in ports or marinas.

We recommend that you regularly check the quality of treated water using a TDS (total dissolved solids) meter if it is not built into your distiller.

The right choice of a desalinator, depending on its performance, is literally a matter of health and even life of passengers and crew. If marine water maker will not be productive enough, then the discomfort from not being able to take a shower is the least that a lack of fresh water can lead to. More severe consequence is body dehydration – loss of over 10% of total body water already leads to physical issues, death occurs at a loss of between 15-25%.

If the capacity of the watermaker produces an excess of fresh water, there is a danger that the desalination equipment will stay idle for some time. Since the membranes will not be constantly washed during the shutdown of the desalter, they can become overgrown with salts and mold, which will provoke the growth of bacteria.

Based on practical experience, the maritime community has determined that when calculating the need for clean drinking water, one should proceed from a norm of 30-40 liters per person per day. Multiply this figure by the number of people on board, add here the expense for technical needs and a dozen liters for insurance - this will be the performance of your future distiller.

Maintenance and Care for Marine Water Makers

Like any yacht equipment, seawater desalters require regular preventive inspection in order to timely troubleshoot.

It has already been mentioned above that the idle time of the distiller without special treatment (preservation for storage) is dangerous due to the overgrowth of membranes and the development of microorganisms on them. Therefore, this equipment requires special and regular maintenance.

The main type of maintenance work is rinsing the membranes with clean, chlorine-free water. The latest generation of desalters have an automatic membrane flushing system, but this process can also be performed manually. It is necessary when the distiller is idle for more than 1-2 days (a shorter period - when sailing in tropical regions) or when the equipment performance decreases. So just check the quality and quantity of fresh water produced regularly.

The performance of the watermaker may also be reduced for other reasons, for example, the weakening of rubber rings, fittings and other connecting parts. In this case, they will need to be replaced.

If you know you won't need the desalter for some time, you should treat it with a biocide in addition to flushing the membranes to prevent deposits and mold from forming. The same process should be carried out from time to time even with the device constantly running for preventive purposes.

On a yacht with a watermaker, it is recommended to have a biocide and a repair kit with spare filters, membranes, rings and fittings.

Advantages and Disadvantages of Marine Water Makers

Like any marine equipment, seawater makers have their pros and cons, which should be considered when purchasing.

If a sea water maker is installed on board your yacht, you will receive the following benefits:

• fully automated desalination process with minimal maintenance;
• high level of sea water purification - from 97 to 99%;
• additional comfort of life on board;
• unlimited range of sea crossings;
• safe water supply onboard in regions where water quality does not pass the necessary sanitary control;
• emergency water supply in case of tanks breakage or water spoilage inside;
• reducing the weight of the yacht, increasing its performance by eliminating the need for constant storage of large volumes of water;
• cost savings in some Caribbean ports where water is scarce and therefore expensive.

After seeing many different types of watermakers in action, the topRik team revealed only two drawbacks. The first is that not all yachts can be equipped with a stand-alone watermaker, as it takes up a lot of space. But there is good news in this regard: the experts of our marketplace will select a modular model for your yacht, which is not inferior in performance and quality to an autonomous one.

Another factor that is usually considered a disadvantage is the cost of marine water makers. But the many years of practical experience of the topRik team shows that it pays for itself in the long run, so it is always possible find an option for the customer interested in this device.

The practice of sea voyages and chartering clearly confirms that a watermaker on board a yacht is the key to a comfortable and safe cruise with family, friends or charter passengers – consider getting one for your own boat!

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Innovative watermakers since 1998.

Established in 1998 Schenker is a leading manufacturer of high quality watermakers based on an energy recovery system . Our company owns 4 patents for unique small scale energy efficient solutions.

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Energy consumption can be reduced up to 80% compared to conventional systems.

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An ultra thin design is ideal for space restrictions and provides easy access for maintenance.

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Our watermakers are powered directly from batteries without the need of a generator, our products, marine watermakers.

Schenker watermakers are simple, quiet, compact, efficient and fully automatic. A Schenker watermaker will allow you – whether you own a yacht, a sail boat or any vessel – to extend your cruising duration and increase your independency from marinas, thus enjoying more time at sea. Schenker’s three-years warranty is backed up by our international network of sales and service representatives.

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7 Best Sailboat Watermakers For Liveaboards 2024

If you’re a liveaboard sailor looking for the best sailboat watermaker then you’ve come to the right place. In this blog post, we’ll take a look at some of the best watermakers on the market and show you how they can help make your sailing experience more enjoyable.

There’s nothing quite like the freedom of sailing on the open water. If you’re a liveaboard sailor, though, you know that keeping your boat stocked with fresh water can be a challenge. That’s where sailboat watermakers come in handy.

Not only do they produce fresh water for drinking and cooking, but they also help keep your boat clean by providing water for showers and dishes.

In this blog post, we’ll take a look at the best sailboat watermakers available on the market today. We’ll discuss the pros and cons of each model so that you can make an informed decision before purchasing one for your boat.

So, whether you’re looking for a compact unit that is easy to install or a high-performance model that can handle large volumes of water, we have something for you. Keep reading to learn more.

How do marine watermakers work?

What are the benefits of having a watermaker on your sailboat.

• How do I choose a sailboat watermaker?

How big a water maker do I need?

How much does a sailboat watermaker cost, how much power does a watermaker use, how much space does a marine watermaker take up, maintaining your sailboat watermaker, the best sailboat watermakers for liveaboards.

As an Amazon Associate, we earn from qualifying purchases. We also earn from other affiliate programs. This means we may receive a small commission on products purchased through our links at no extra cost to you.

Marine watermakers are devices that convert salt water into fresh water, making them an essential tool for sailors and boaters. But how do they work?

At the heart of every marine watermaker is a reverse osmosis membrane. This is a thin, semi-permeable film that allows water molecules to pass through, but blocks out larger molecules like salt.

To create freshwater, salt water is forced through the membrane under high pressure. This process is known as reverse osmosis, and it leaves the salt behind in the brine stream. The freshwater that comes out of the other side is then collected and stored in tanks.

Marine watermakers are powered by either electricity or a diesel engine, depending on the size of the unit. Some small portable units can even be powered by a car battery.

You will probably want a pretty decent battery bank and solar or wind setup to power your watermaker. By far the easiest solution is to get a reliable, drop in battery. We highly recommend BattleBorn’s lithium batteries which is what we use to power our watermaker.

⚡ Check out BattleBorn batteries here

If you’re thinking of outfitting your sailboat with a watermaker, you’re in for a treat. Adam and I put off buying one for two years, as we weren’t sure it would be worth the big investment. But after a year in the Cyclades where finding free town quays with water was near impossible, we decided to bite the bullet and commit.

It’s the one thing we wish we’d done sooner. A sailboat watermaker has literally changed our lives at sea and we couldn’t be without one now.

Not only will you have a reliable source of fresh water, but you’ll also be able to enjoy extended stays at sea. Here are just a few of the benefits we’ve found of having a watermaker on your sailboat:

Perhaps the most obvious benefit of having a marine watermaker is that you’ll never have to worry about running out of fresh water. Whether you’re sailing around the world or just spending a few weeks cruising the coast, a watermaker will give you the peace of mind that comes with knowing you have an unlimited supply of fresh water.

Obviously, fresh drinking water from the watermaker is great, but it also means we don’t worry about taking a shower or the huge amounts of washing up caused by certain meals or having people over for dinner!

In addition to providing an endless supply of fresh water, a watermaker can also help extend your cruising range. By making your own water, you won’t have to make as many stops to restock your tanks. This means you can stay out on the open water for longer periods of time and explore more distant ports. It also saves a lot of money on marinas and a lot of trips to beach showers!

Finally, having a watermaker onboard can be a real lifesaver in an emergency. If your boat is disabled and you’re stuck at sea, having a way to make fresh water can mean the difference between life and death.

How do I choose the best sailboat watermaker?

There are a few things to keep in mind when choosing a watermaker for your sailboat. There is no one size fits all when it comes to choosing the perfect watermaker for you, so take some time to read the pros and cons of each model before you commit!

If you’re just cruising around the local waterways, you can get away with a smaller unit and top up your tanks with water from the dockside. But if you’re planning on venturing out into the open ocean, you’ll need a larger unit that can produce more water.

You’ll want to take into consideration the amount of people you’re likely to have onboard. Adam and I find out Rainman naked 12V system keeps up with our needs just fine, but after taking on two more members of crew we quickly ran out of water and struggled to keep up with the new demand.

You should also track your water usage habits for a bit to see how much water you use on a daily basis. If you can’t live without daily long showers, or you need fresh water to wash down the boat regularly, or you have fresh water flushing toilets then you’ll obviously be using a lot more water than others.

The amount of water you use when you have a watermaker is likely to increase a little from your needs now, as you’ll be a little less careful with it. Factor this into your decision!

Like everything in sailing, you can spend as much or as little as you want on a watermaker. There are even some people who have successfully made their own watermaker and only spent money on the parts (some of which you can source second-hand).

If you aren’t a wizard with things like that though, you’re going to be looking at spending a decent amount of money on a sailboat watermaker. On average, they cost around £3000-£5000 for a watermaker for a cruising sailboat (around 40ft).

You can spend more like £10,000 on a watermaker for a larger boat, and you can spend less on a second-hand marine watermaker or a DIY one.

We’ve put together a guide to help you work out your needs based on what you use aboard.

Different brands of watermakers are more efficient than others, but from our own experience and that of others we’ve talked to, it takes around 10 Watt-hours to make a litre of water – i.e. about 0.8 Amp-hours from a 12-volt battery.

Things like the chemistry of your battery bank, the length of your cable runs, and even the temperature of the sea, can all make a difference to the amount of power you’ll need to make a certain amount of water, but this is a rough average.

We’ve got a guide on working out how much power you’ll need.

A marine watermaker is a very useful tool, but it’s not exactly small. In fact, depending on the model, a watermaker can take up quite a bit of space.

The average unit is about the size of a small freezer, and some models are even larger. Given that most boats are fairly limited in terms of space, this can be a bit of a problem.

The good news is that there are now several manufacturers who offer compact watermakers that are designed to take up less space. These units are often smaller than a standard coffee maker, making them much easier to find a spot for on your boat.

We’ve included some great options for smaller boats below.

Like any piece of equipment, a watermaker requires regular maintenance. Fortunately, there are some simple steps that you can take to keep your watermaker in good working condition.

First, be sure to check the filters on a regular basis. Not only will this help to ensure that your water is clean, but it will also help to prolong the life of your watermaker.

Second, be sure to check the seals and o-rings for leaks. These are essential for keeping your watermaker operating efficiently, and any leaks can lead to costly repairs.

Finally, be sure to perform a yearly “spring cleaning” by flushing the system with fresh water.

By following these simple tips, you can keep your watermaker in good working order for years to come.

You should also account for the fact that parts are bound to break and need fixing or replacing. Most watermakers come with proprietary parts which make them a pain to fix in remote places, but there are a few that take non-proprietary parts. We would recommend these to anyone planning a larger cruising ground.

#1 Rainman naked 12V Marine Watermaker

The Rainman naked 12V watermaker is a great option for anyone looking for a compact, efficient way to produce fresh water.

The unit is simple to set up and use, and it produces up to 30 litres of fresh water per hour for a smaller unit, or up to 140 litres per hour for a larger one.

One of the main reasons we were drawn to Rainman watermakers is that they use all off-the-shelf, standardised parts. If your Rainman breaks down, it almost doesn’t matter where in the world you are – you’ll likely be able to get standardised spares in the nearest major city. For any liveaboards hoping to circumnavigate this should be an important consideration.

Installation was really very straightforward. End-to-end it took two days to install and test the unit, plus an extra day to get the autoflush set up.

We were pleasantly surprised to find that the unit came with almost everything we needed to install it. We were expecting to supply our own hoses, sundries, etc. but Rainman supplies everything you need.

Whether you’re sailing around the world or just weekends on the lake, the Rainman naked 12V watermaker is a great way to ensure you have access to fresh, clean water.

Check out our full Rainman watermaker review for everything you need to know.

#2 Spectra Newport 400c Watermakers for Sailboats

Spectra watermakers have an excellent reputation among the sailing community and you can’t go wrong with one of their marine watermakers for your sailboat.

They make a range of different sailboat watermakers to suit different needs and sizes of boat, from hand-operated desalinators that can make 6 gallons a day to their largest system that produces 20,000 gallons of fresh drinking water per day.

The Newport 400c model operates on as little as 4 watts per liter, so you can run it on a small generator, solar, wind, or even just straight off the batteries. It’s a great option

The Spectra Connect system means you can operate and monitor your watermaker from a remote device, and it has lots of other clever features including a fill tank mode and suggested maintenance intervals.

You can choose the speed operation on this sailboat watermaker for maximum flow or maximum efficiency depending on your power management onboard. This is a great ‘all bells and whistles’ watermaker that takes the guesswork out.

#3 Spectra watermaker Ventura Series

As with the Newport 400c, Spectra ensure these watermakers are built to last and they have a really great reputation.

The Spectra watermaker Ventura series is designed to be energy-efficient and lightweight and is the perfect watermaker for smaller spaces.

It produces 24 litres an hour, which is less than the Rainman model but still enough for a couple living aboard a small sailboat if you’re conservative with water usage.

You can also opt for a warm water model that will produce slightly more water per hour and is the same size (but you’ll need to be sure your cruising area is only warm water!)

#4 The Ultra Whisper

The Ultra Whisper by Sea Recovery is one of the best watermakers out there for smaller boats, or boats not set up with adequate power to run one of the larger units.

It can run on either AC or DC and claims a 75% reduction in power consumption compared to the other products listed here. It’s also super quiet, which if you’ve run a watermaker before, is actually a huge bonus!

This is a small but perfectly formed piece of equipment that will enable you to make water with the smallest power setup, but obviously, on the downside, you won’t produce as much water so you’ll need to be careful with your consumption onboard.

Sea Recovery has more watermaker models on offer in a wide variety of size and capacity options. There’s even a really tiny version that measures only 2-3 cubic feet for sailboats that can’t compromise on space.

#5 Village Marine – Little Wonder series

Village Marine is another of the most popular marine watermaker brands and has a reputation for making reliable and efficient sailboat watermakers in a range of different models to suit different needs.

The Little Wonder series is one of the smallest (the reason for the name) and weighs only 69 pounds with the ability to produce 180 gallons of freshwater per day.

It has a low RPM high-pressure pump in a modular design, which means you can install it in different parts of the boat to maximise your space. This is really handy for smaller sailboats.

Installation is quick and easy, and a competent DIYer can do it. It is anti-corrosive and as a bonus, is also quiet to run!

This is one of the best watermakers on the market for smaller sailboats, and should last a long, long time.

#6 Village Marine – LW Watermaker Series for bigger boats

For anyone out there looking for a serious sailboat watermaker for a bigger boat, Village Marine has something suitable. The LW watermaker series caters to boats up to 100 feet in length.

This watermaker can produce up to 1800 gallons of freshwater a day, which is a crazy amount and will give you complete water independence on board.

It’s a much larger unit, obviously, so you’ll need to make sure you have space on board. It’s also a lot more expensive so it really is only suitable for larger boats and commercial vessels.

#7 Rainman Portable Sailboat Watermaker

Rainman make a portable watermaker that has many benefits over an installed version. it won’t suit all sailboats but it’s a great option to have for the following reasons.

• You don’t need to install the system. You can cut out a lot of the faff and make fresh drinking water within minutes of receiving the product.
• You don’t need any extra holes in your hull to use the watermaker.
• If you race your sailboat you can store the watermaker ashore to save on weight.
• It’s a great option for smaller sailboats as it can be moved to accommodate for extra guests.
• You can take it with you from boat to boat.
• You can share the watermaker and potentially the cost!
• You can use it for all your trips away from water supplies. Take it on road trips, fishing trips etc.

A portable sailboat watermaker might make a lot more sense for your needs, and it’s great to have the option to choose between the two. This watermaker comes with all the benefits of the Rainman installed version, so you can check out our Rainman review to help with your decision.

Conclusion for the best sailboat watermakers

If you’re in the market for a watermaker, we hope our review has helped you narrow down your choices. We believe that the best sailboat watermakers are those that are reliable, powerful enough for your needs, and easy to maintain. So if you’re looking for an efficient and durable watermaker, be sure to check out the options on this list.

If you’re looking for more liveaboard tips or want help with planning your move onto a boat then check out our ‘ How to run away to sea ‘ guidebook for everything you could possibly need to know about living on the ocean.

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Liveaboard Marinas: What’s It Like To Live In A Marina

• Search Search Hi! We’re Emily, Adam and Tiny Cat, liveaboard sailors travelling the world on our 38ft sailboat and writing about it as we go. We hope we can inspire you to live the life you’ve always dreamed, whether that’s exploring the world or living a more simple way of life in a tiny home. Find out more. Patreon
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Echotec Watermakers, Desalinators & Reverse Osmosis Water Systems for the Marine & Yachting Industry

Octo Marine stocks a wide range of Echotec Reverse Osmosis Watermakers, Desalinators, Filters and compatible accessories.

ECHOTec Watermakers / Desalinators – Reverse Osmosis Desalination Systems

ECHOTec manufactures some of the most rugged and easy to operate watermakers / desalinators or desalination systems for yachts, marine and for land-based applications.

The wide product range covers modular AC, DC and belt driven watermakers from 8.4 GPH / 32 LPH to self-contained desalination systems with a production of 14.000 GPD or 53,000 LPD per unit.

More than 5,000 ECHOTec desalination systems operate dependably and cost-effective throughout the world, many of them on continuous duty. Only highest quality components, proven to withstand continuous operation in the harsh marine environment and comply to industry standards including: NEMA, ASTM, API, NSF and BSI are selected for safe operation and extended product life cycle.

The list below shows the range of Echotec branded and compatible products currently available on our website. For more information contact us at +33 (0)4 93 65 04 84 or by email at [email protected] .

ECHOTec Watermakers & Supplies

Octo Marine MC5 Duplex Yacht Water Maker

Water Makers

Octo Marine MC3J Yacht Water Maker

Water Maker Membrane

Water Maker Consumables

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• Portable Watermaker Lithium Powered
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Available in 17 to 40 GPH - Best for medium to large size vessels.

Watermaker: AC 110-220 Volt 970 Watts, 40 GPH Dual Membrane

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30 GPH - Best for medium to large vessels with limited space.

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Watermaker: DC 24 Volt 900 Watts, 40 GPH Dual Membrane

SeaWater Pro Micro Water Maker®

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Swp modular & portable watermakers.

Welcome to SeaWater Pro, the premier provider of high-quality watermakers for boats and portable watermakers for all your marine adventures. Our cutting-edge technology and reliable products will ensure that you have access to clean, purified seawater wherever you go. With our easy-to-use and reliable watermakers, you can say goodbye to bulky storage tanks or worry about running out of fresh water. Our compact and efficient systems are designed specifically for marine use, making them perfect for boats of all sizes. Whether you're cruising the open seas or anchored in a secluded cove, our watermakers will provide you with a steady supply of fresh, drinkable water. At SeaWater Pro, we understand the importance of safe and clean drinking water while at sea. That's why our portable watermakers are equipped with advanced filtration systems that remove harmful contaminants and bacteria. Look no further than SeaWater Pro for your next, most reliable boating adventure investment!

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Charting your course: your first steps into the exciting world of the sea industry, perks of staying hydrated with a portable watermaker while camping, prepping your boat for hurricane season with seawater pro, how do i know which seawater pro watermaker i'll need for my boat.

• Identifying which power source you'd like to run the system. AC or DC power?
• Determine how many gallons per hour will you need to maintain your lifestyle, 17 or 40 GPH.

How much does each SeaWater Pro System weigh?

Every modular watermaker ships in 2 boxes: The first Box is 48 x 12 x 12, 60 lbs. and the second is 24 x 12 x 12, 37 lbs.

Can I install a SeaWater Pro system myself?

Yes! We have videos and instructions for our customers on the resources page .

Do I need a control panel?

Do I need a control panel? Click to watch video

How do I rinse my system after I use it?

Rinse Timer Setup Guide Click to learn more about using your system's rinse timer!

How often do I need to pickle my watermaker?

How to pickle my SeaWater Pro system! Click to watch our short video guide.

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Fresh technology makes watermakers a clear choice

September 3, 2021

Whether enabling an extended stay at a secluded location or a coastal voyage, the freedom and independence that a watermaker provides is indisputable – for some it’s indispensable.

From small portable manual units to high-output fully automated desalination systems, Riviera offers a range of the latest technologies fit for every style of luxury boating.

Watermakers will be standard on the Riviera 78 Motor Yacht, with a choice between two brands and systems: Blue Water or Parker, fully or semi-automatic. Optional for all other models, a watermaker is a decision best made during the building of a Riviera motor yacht to enable the installation of wiring and skin fittings through the hull.

Blue Water is among the larger watermaker systems installed in Riviera motor yachts.

Watermakers also can be retrofitted, and units are available in compact or modular configurations for confined areas. Rainman, which can be purchased from Riviera Genuine Parts, offers a manual unit suited to smaller yachts, in addition to a portable unit.

Power sources to operate the high-pressure pumps of watermakers vary depending on the system.

Rainman has an AC electric, 12V DC system. The larger systems by Blue Water and Parker require 240V AC, meaning either a generator or shore power, to produce water.

LEFT: The convenience of having plenty of fresh water aboard your Riviera motor yacht extends to using it for essential cleaning. RIGHT: The Blue water control panel.

The reverse osmosis process

On-board watermakers use a high-pressure pump to force water through a semi-permeable membrane. This separates larger particles and unwanted molecules, such as salt and other minerals. While functional aspects vary from model to model, systems typically include a series of pre-filters and post-filters.

First a suction pump draws in seawater through a sea strainer, which eliminates large objects such as marine life and sea grass. The water passes through an optional media filter – filled with sand or glass beads – and also an optional plankton filter before it’s purified through two pre-filters (from 20 micron to 5 micron).

Cartridge sizes for pre-filters range from regular household-sized filters to commercial-sized filters, which are more than double the volume. Commercial filters are more likely to last a full year of use, while smaller standard filters may need to be replaced sooner if not used in particularly clean water.

Ongoing maintenance of your watermaker is critical and the safest way to do this is to run it regularly.

At the heart of a watermaker is the tube-shaped semi-permeable membrane, roughly 75mm thick. A high-pressure pump exerts up to 900 pounds per square inch (psi) to force water through this membrane. Salt and other particles remain on the exterior of the tube, while fresh water is pushed into its centre and flows out. The process of reverse osmosis also strips out minerals and will alter the pH levels of the water. A pH neutralising filter balances pH levels and can also add minerals back into the water.

Fully automatic and semi-automatic watermakers include a control box that measures salinity before water is diverted to a holding tank via a carbon filter, an optional pH filter (standard on larger units) and an optional UV filter for the final removal of micro-organisms. The result is pure potable water.

The Blue Water Express XT watermaker features fully automatic operation with capacities of up to 150 litres (40 gallons) per hour.

Going with the flow: automatic and manual systems explained

This will largely come down to the size and use of a motor yacht. Fully automatic systems are the most hassle free. Their one-touch operation and continuous automated monitoring takes the thinking out of the equation: salinity is measured, and pump pressure is automatically regulated.

The larger units can be programmed to produce a certain volume of water or run for a pre-programmed time. Commonly fitted to a Riviera 64, 68, 72 Sports Motor Yacht and 78 Motor Yacht are the fully automatic Blue Water Legend 1850 or Parker Aqua Matic 1800, which produce around 7,000 litres per day. These larger desalination systems require two membranes, while commercial-sized pre-filters are recommended.

Semi-automatic systems may stop and start automatically, measure salinity and include optional tank float switches, but require manual flow-rate monitoring as a product water-flow rate that exceeds a membrane’s specifications will damage its materials. Float switches can automatically start when a holding tank is low and turn off when it is full, which is useful for extended stays offshore in clean water.

While functional aspects vary from model to model, watermaking systems typically include a series of pre-filters and post-filters.

A Riviera 505 SUV or 5400 Sport Yacht, for example, may opt between a full or semi-automatic system capable of producing around 3,000 litres per day. Common fits are the Blue Water Express 950 (semi-auto) or Blue Water Legend 950 (fully-auto) or Parker HRO Seafari 900 (semi-auto).

Manual watermakers are designed to the same quality standards. However, they require a skipper to attend to salinity (by taste) before directing water flow to a holding tank, and to keep an eye on flow rate, especially if the marine environment and water quality is variable due to tidal movements.  On the flip side, their lack of electronics reduces their overall investment and ongoing maintenance.

Depending on the model, a Rainman manual system produces between 70 and 140 litres per hour.

The luxury of having plenty of fresh water aboard your Riviera motor yacht extends to using it for essential cleaning.

Care and maintenance

Ongoing maintenance of your watermaker is critical and the safest way to do this is to run it regularly. This keeps pumps lubricated, membranes moist and prevents seals from hardening.

The boating environment, specifically sedimentation in water, will have the biggest impact to a watermaker’s overall efficiency and maintenance demands. Sedimentation varies between inland waterways and open seas. It’s prudent to avoid using a watermaker in heavily sedimented water. Where possible in inland waterways, use a watermaker on an incoming tide when clean water is visible.

Inland waterways will also require more attention to pump pressure as salinity changes. Fundamentally, a watermaker should be set by flow rate, and not pressure.

The Blue Water Legend 950 is a fully automated watermaking system.

The pressure required to make water will vary due to water temperature and salinity. In clean, offshore water it should require between 800psi and 900psi and should not exceed 900psi or damage to the membrane may occur. This can vary significantly in inland waters due to the amount of freshwater runoff. As low as 350psi to 400psi may achieve the specified water flow as it takes less pressure without the resistance of salt.

As finer mud sediments get stuck in a membrane, the product water flow will drop. Even if a system is run at a maximum of 900psi, the system will not be able to produce the specified water flow. Mud sediments cannot be flushed out.

Maintenance schedule

Daily: A media filter collects larger particles that will more easily build up and cause blockages – it should be back-flushed after four to five hours of use. Sand or glass beads inside a media filter should be replaced every five years.

Weekly: When not in regular use, the entire system should be back-flushed every seven days. This pushes stagnant water through and prevents the build-up of any bacterial or organic matter including in the membrane itself. The freshwater pump must be left on for this to happen. Automatic and semi-automatic units control this within their programs, but they must be connected to shore power. Smaller systems may suffice with house batteries maintained by solar panels; again, the fresh-water pump must be left on.

Monthly: A minimum monthly inspection and clearing of the sea strainer is recommended. It’s best to check more frequently when in high-weed environs. If sitting idle for longer periods, a system may be completely flushed out with a chemical membrane storage liquid that ensures no stagnant water remains – a process known as winterisation.

Annually: A yearly service will replace the pre-filters and carbon filters, and change the oil in the high-pressure pump. Hoses, clamps and fittings will also be inspected.

Biennially: Membranes should be removed and chemically cleaned every two years to maximise water quality and achieve maximum product water flow. Looked after correctly, membranes should last up to 10 years.

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boat watermaker Wiki

Production : 30 l/h Power consumption : 110 W Length : 71 cm

Wiki, term of Hawaiian origin which means “fast, quick”. An ideal name for a portable plug-and-play watermaker that can be activated in just a few minutes. Embrace the freedom of portable drinking water with the compact, ...

boat watermaker ZEN 30

Production : 30 l/h Power consumption : 110 W Weight : 21 kg

... consumption to a minimum. Can be installed in all positions, horizontal as well as vertical. The new state of the art in small watermakers .

boat watermaker ZEN 50

Production : 50 l/h Power consumption : 240 W Weight : 30 kg

Powerful, silent, light, efficient, convenient. The Zen 50 is equipped with a latest-generation Energy Recovery System that reduces power consumption to a minimum, and the “economy" function that reduces power consumption and production ...

yacht watermaker H2O ECO

Length : 487 mm Width : 627 mm Height : 283 mm

The new Patent Pending Energy recovery Device H2O ECO is engineered for boaters with limited power options. Featuring automatic operation, it is ideal for Catamarans and sail boats. The new Patent Pending Energy recovery Device H20 ...

yacht watermaker HP UC series

Our UC watermakers are perfect for sailboats and yachts between 30 and 55 feet. They feature our Thermal Energy Recovery System (TERS) in order to improve the watermaker 's performance ...

boat watermaker EFFICIENT A-200

Production : 200 l/h

The EFFICIENT T-200 watermaker is a fully autonomous device, portable or fixed depending on the model, that can produce 200 litres of drinking water per hour for human, agricultural or industrial use from seawater, saltwater ...

boat watermaker EFFICIENT T-4000

The EFFICIENT T-4000 watermaker is a fully autonomous device, portable or fixed depending on the model, that can produce 4,000 litres of drinking water per hour for human, agricultural or industrial use from seawater, ...

boat watermaker EFFICIENT T-2000

The EFFICIENT T-2000 watermaker is a fully autonomous device, portable or fixed depending on the model, that can produce 2,000 litres of drinking water per hour for human, agricultural or industrial use from seawater, ...

boat watermaker D30

Power consumption : 370, 600 W

... panel. The Dessalator DC FREEDOM watermakers are the ideal watermakers for any yacht where DC power from the engine driven alternator is the only power source available. It is also ...

boat watermaker Ventura 150R Remote Manual

Production : 24 l/h Weight : 27 kg

... be mounted remotely and offers basic control of the watermaker , including freshwater flush with a set duration, perfectly bridging the gap between our full manual and completely automated watermaker ...

boat watermaker EVO 70/100

Last generation Automatic Watermaker . One touch operation with the possibility of a full color Touch Screen controller. Equipped with an Automatic Pressure setting and Automatic Flushing system, the watermakers ...

yacht watermaker ATLANTIC SW

... capacity watermaker . Its compact stainless steel structure is provided with an electronic control devices with microcontroller. Atlantic SW can produce a large quantity of fresh water and its typical application is on ...

yacht watermaker AQUA-BASE Y

AQUA-BASE® Y range offers a particularly robust design in a compact frame, recommended for intensive use such as: charter, yachts , fishing … Classic high pressure pump, powered by generator. To fit to any configuration, ...

military vessel watermaker BICOMPACT

Production : 400, 700 l/h Power consumption : 4,000 W Length : 1,190 mm

The BiCompact is the Tecnicomar’s duplex watermaker , combining two independent systems on a common stainless steel frame able to work alone one by one or together simultaneously to reach a double capacity for sample during ...

boat watermaker Seafresh H2O Series

... frames or can be supplied in component form enabling items to be distributed around the yacht to make the most efficient use of available space. The desalinators are most commonly powered by AC generator, ...

boat watermaker NWE-Series

Reverse Osmosis (RO) is a well-known process which has been under continuous development since the 1950s. The technology, by means of membranes and high pressure, is commonly applied to convert seawater into freshwater, removing the salt ...

yacht watermaker DML SERIES

With the release of the new 12 / 24 Volt Watermaker 200-DML-1, ECHOTec achieved a breakthrough in efficiency for watermakers , utilizing ultra-reliable triplex ceramic plunger pumps. The ECHOTec. pump ...

ship watermaker MT 1500-6000

Watermaker produces drinking water from sea water based upon the reverse osmosis membrane technique. The capacities are 1500, 2300, 1800, 3200, 4500, 5500 or 6000 l/24h from seawater (25o C). The quality of the ...

boat watermaker Legend LX Series

... newest member to the Blue Water Legend series is the all-new LX – the world’s first fully automatic Megayacht/Commercial size watermaker . It uses leading edge technology to provide fully automatic operation and the systems ...

boat watermaker RF-RO-101

... river water, groundwater, town water Areas of use Drinking water production on medium-sized or larger vessels, ferries, yachts or for supply in the offshore area Safe usage in harbours Activated carbon filters ...

boat watermaker WHISPER Serie

WHISPER Serie Whisper 30 integral 30L/h one integrated short Membrane. Whisper 60, 60L/h one long Membrane Whisper 90, 90L/h two long Membranes The main feature of the Whisper series is the ETD (Energy Transfere Device). This unit ...

yacht watermaker DeepBlue 25

Production : 90, 160, 200, 240 l/h Length : 1,159 mm Width : 521 mm

... deepblue® 25 series water maker models are available in frames or can be supplied in component form enabling items to be distributed around the yacht to make the most efficient use of available space. A ...

yacht watermaker DD 500

Production : 55 l/h Weight : 34 kg

... be provided on board. Watermaker DD 500, a proven desalinator for the two-person crew, driven by a 12 V or 24 V DC motor. The direct drive via a flexible coupling ensures smooth and maintenance-free ...

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A water maker for yachts produces fresh water by removing salt from seawater. Because of reduced space, it is smaller than a ships desalination unit. NauticExpo offers various types, such as reverse osmosis, evaporation and distillation water makers.

These devices are used to produce fresh water for on-board consumption.

Each type of water maker uses different technology to produce fresh water.

Choice will depend primarily on the capacity, the size and the energy consumption of the unit.

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“It was created as the conduit for a thrilling experience—watching whales around the boat, dolphins surfing bow waves or passing glaciers in icy waters,” says Enrique Tintore, design manager for the Dutch line of expedition yachts , ranging from 197 to 345 feet. “The idea is to maximize the connection with nature, to look down over the front of the bow and feel an unusual connection. That’s something you can’t do on any other yacht.”

The open bows of Ferretti Yachts’ Infynito 90 , and recently announced Infynito 80, are less concerned with off-grid travel, but more about social possibilities. More cruiser than explorer, the 90 has an “All Season Terrace” that connects directly with yacht’s outer passageways all the way back to the aft cockpit. The 90’s bow area is designed to be private, but still open, configured with lounges, a forward sunpad and Jacuzzi. Owners can even opt for a cocktail bar with stools. Like the Damen Xplorer, it has open sides and an open front, but the overhead offers protection with slats that can open if the owner and guests want direct sunlight. “We created it as an oasis to put the people living on board front and center,” says Ferretti’s Filippo Salvetti.

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