RAINMAN WATERMAKER SPECIALISTS

InstallED Electric rainman WATERMAKERs

rainman portable watermaker logo

115V / 230V Rainman WATERMAKER

The most popular model of Installation Watermaker is the AC model – which uses an AC  power source – such as an onboard generator or good quality inverter – to power the system. This configuration can be ordered in either 115V/60Hz or 230V/50Hz.  Don’t hesitate to contact us if you are unsure which power configuration to order.

AC Systems are capable of up to

37 GPH

 

Rainman Watermaker Logo

12V DC Rainman Watermaker

Rainman Watermakers are also available in a 12V DC configuration – DC installed watermaker systems are ideal for vessels looking for low output, and a very low power consumption. Ideal for running on  wind/solar supplemented battery bank.  If running on batteries alone, we recommend at least a 400 amp-hour bank to operate this system.  

12V DC Systems are capable of up to

9 GPH

Rainman Watermaker

Installation Pressure Supply Unit

(NKD Electric PSU)

Two Components – One System

Installation Rainman Watermakers consists of two components: the Pressure Supply Unit and a set of Reverse Osmosis Membranes. Both are required to make a complete Rainman Watermaker desalination system. 

Installation of the system can be done professionally – however due to the design of the system, most of our customers complete the installation without the use of an installer. The skills required include the use of hand tools, water line routing, plumbing and associated cabling. Check out our installation guidance to help plan your install. 

The Pressure Supply Unit is easily selected based upon your power supply at the time of installation. The PSU lifts the seawater, filters out dirt and sediment then puts the system under high pressure for operation. There are multiple methods of watermaker installation as detailed below. This system comes complete with all mounting and installation hardware (excluding throughhull and strainer)

A set of membranes are connected to the PSU to extract drinking water from the seawater  – which is the basic operation of the system.

 

115V Installation PSU

115V Installation Pressure Supply Units are designed to operate drawing around 12A/1250 watts in steady state power consumption. A 2KvA generator or high quality inverter is often used with this configuration.

Details

Technical Specifications

  • 1.5 HP TEFC induction motor
  • 1250 watts steady state power consumption
  • Current draw 15 Amps
  • Power cord length – 10ft
  • 16ft Intake hose with strainer 
  • Integrated flexible impeller
  • 6ft maximum vertical lift above sea level / source water
  • GP WMR 316 stainless steel high pressure triplex plunger pump 
  • Integrated GP 315SS Ceramic relief valve to prevent overpressurisation.
  • Sound level – 62dB at 20ft 
  • PSU mounting hardware included
  • Plumbing installation kit included

PSU Dimensions

  • PSU Weight 53lbs
  • L23.6″ x H14.8″ x D10.6″

230V Installation PSU

230V Installation Pressure Supply Units draw approx 6 amps – around 1250 watts steady state power consumption. A 2KvA generator or high quality inverter is often used with this configuration. Your preferred plug can be selected upon order.

Details

Technical Specifications

  • 1.5 HP TEFC induction motor
  • 1250 watts steady state power consumption
  • Current draw 15 Amps
  • Power cord length – 10ft
  • 16ft Intake hose with strainer 
  • Integrated flexible impeller
  • 6ft maximum vertical lift above sea level / source water
  • GP WMR 316 stainless steel high pressure triplex plunger pump 
  • Integrated GP 315SS Ceramic relief valve to prevent overpressurisation.
  • Sound level – 62dB at 20ft 
  • PSU mounting hardware included
  • Plumbing installation kit included

PSU Dimensions

  • PSU Weight 53lbs
  • L23.6″ x H14.8″ x D10.6″

DC Installation PSU

12V DC Pressure Supply Units require around 30 amps to operate – around 410 watts. The Rainman system is ideal for folks wanting to avoid the complexities and maintenance of more efficient energy recovery systems.

Details

Technical Specifications

  • Permanent magnet TEFC DC motor
  • 410 watts steady state power consumption
  • Current draw 30 Amps
  • Power cord length – 4.5ft – Anderson
  • 16ft Intake hose with strainer
  • Integrated flexible impeller
  • 6ft maximum vertical lift above sea level / source water
  • GP WMR 316 stainless steel high pressure triplex plunger pump 
  • Integrated GP 315SS Ceramic relief valve to prevent overpressurisation.
  • Sound level – 58dB at 20ft 
  • PSU mounting hardware included
  • Plumbing installation kit included

PSU Dimensions

  • PSU Weight 53lbs
  • L23.6″ x H14.8″ x D10.6″

    Rainman Watermaker

    Membrane Options

    Two Components – One System

    The Reverse Osmosis Membrane is ‘Part Two’ that will complete your Rainman Watermaker Desalination System.
    Membrane selection is a combination of size and product water requirements.
    Whilst the high output system is the most popular of the three models – three options are available: Economy, Compact and High Output. The intentional naming of the membrane options represent the selection characteristics.
    The membranes recieve the high pressure water from the Pressure Supply Unit and, using reverse osmosis, extract the drinking water from the seawater.
    The membranes will produce two ‘output’ streams – the first will be the ‘Brine’ or ‘Waste water’ – which you will discharge back into the ocean – this is simply the same water that came in to the system – minus some pure water molecules.
    The second stream the membranes produce is the ‘permeate’ or ‘fresh water’ stream. This is the output that we commonly refer to as ‘product’ water, and is comparable in quality to bottled or distilled water. You will place this product water hose in your fresh water tanks and leave to fill.

    High Output Membranes

    26 – 37 GPH

    The installation high output membrane is the flagship model – designed specifically for the Rainman Installation Pressure Supply Units. With the High Output membrane, you can expect to produce between 26 – 37 GPH. This is our most popular and highest output option.

    Details

     

    • Compatible With 115V / 230V System
    • NOT Compatible With The 12V DC System
    • Produce Up To 37 Gallons Of Drinking Quality Water Per Hour.
    • Desalinate Sea, Brackish and Fresh water 
    • Twin 40″ Dupont Filmtec Membranes
    • Includes Mounting Brackets
    • 10ft Brine Discharge Hose
    • 10ft Product Water Hose + 33ft Extension
    • 16ft High Pressure hose (PSU connection)
    • 2 Year Rainman Warranty 
    • Preffered Seatask Support 

    COMPACT MEMBRANES

    13 – 18 GPH

    An ideal companion for the electric PSU if you are short on space, and do not require the higher output that the High Output membrane provides. This compact membrane, together with the Rainman Installation Electric PSU is capable of producing between 13 – 18 Gallons Per Hour.

    Details

     

    • Compatible With 115V / 230V System
    • NOT Compatible With The 12V DC System
    • Produce Up To 18 Gallons Of Drinking Quality Water Per Hour.
    • Desalinate Sea, Brackish and Fresh water 
    • Twin 21″ Dupont Filmtec Membranes
    • Includes Mounting Brackets
    • 10ft Brine Discharge Hose
    • 10ft Product Water Hose + 33ft Extension
    • 16ft High Pressure hose (PSU connection)
    • 2 Year Rainman Warranty 
    • Preffered Seatask Support

    ECONOMY MEMBRANES

    13 – 18 GPH (7-9 GPH  for 12V System)

    The most economical companion to the Electric PSU. With the Economy Membrane, you can expect production rates between 13 – 18 Gallons Per Hour*. This is also the only membrane compatible with the 12V DC Rainman system (*7-9 GPH at 12V)

    Details

     

    • Compatible With 115V,230V and 12V System
    • Compatible With The 12V System up to 9GPH
    • Produce Up To 18 Gallons Of Drinking Quality Water Per Hour.
    • Desalinate Sea, Brackish and Fresh water 
    • 40″ Dupont Filmtec Membrane
    • Includes Mounting Bracket System
    • 10ft Brine Discharge Hose
    • 10ft Product Water Hose + 33ft Extension
    • 16ft High Pressure hose (PSU connection)
    • 2 Year Rainman Warranty 
    • Preffered Seatask Support 

    Easy Mounting System

    Physical installation of a watermaker system is a common challenge. 

    Rainman has deleloped, and includes with every installation system, a intuitive mounting system designed and constructed from fiberglass reinforced nylon to greatly simplify the installation process – simply screw or adhere the membrane and PSU seating plates to the desired location, and the Rainman Watermaker simply ‘snaps’ into place. 

    SYSTEM SELECTION GUIDE

    Looking for assistance in selecting your watermaker? Use our system selection guide

    for step by step guidance in selecting your perfect Rainman Watermaker System.

    Plumbing Solutions

    Sourcing all of the components to install a watermaker can be a challenge – but Rainman has taken the time and guesswork out of it, and includes a comprehensive plumbing installation kit with every installation system.

    This kit is designed to fulfil the requirements for the majority of installations – whilst understanding that every vessel and application is different, so there may be some parts remaining to source (such as extra hose and fittings for custom installations / extended runs etc)

    Portable Desalination Rainman watermaker operations

    Types of Installation

    The Rainman Watermaker during installation can be plumbed in various configurations to account for various onboard situations.

    Optional components are also available for purchase to further customise your installation – such as an Auto Flush System, or Control Panel. 

    Can I Convert An Installation System To A Portable?

    Yes! Rainman Installation systems can easily be converted to an portable system, and vice versa. The blue shells (available for purchase) attach, and the plumbing components can be sourced in the parts store. You can also purchase the system as a portable system

    Do I Have To Buy Spares Through Rainman / Seatask?

    No! The Rainman Watermaker system uses components that are compatible with many other brands – and the sizing of the membranes and filters are common size – which means that you can source from various marine stores globally.

    What is The Lead / Shipping Times? Shipping Costs?

    We offer a flat rate shipping cost of $360 throughout the USA. PR / VIs and Caribbean usually runs around $580. We ship all systems within 24 hours of order by UPS – with an average delivery time of around 5-7 business days.

    What Is The Maintance Required on A Rainman System?

    All systems onboard require maintance – your watermaker is no exception. A full guide comes with your system – but as a rule of thumb:

     

    •  5-50 Hrs – Prefilter Change
    • 1-2 Years – Impeller & Oil Change
    • 5-10 Years – Membrane and Packings Change

    Are There Any Current Promotions?

    We have a number of promotions available throughout the year on systems and spares. Sign up to receive our monthly promotions emails here… (When you purchase your system through Seatask – you receive a discount on service and spares purchased from our store.)

    Where Can I Request Information?

    Select your system with our interactive selection tool, and we’ll send you a brief email with details, pricing and specifications – plus a direct contact for questions to our team. 

    Optional Accessories

    The Rainman Watermaker during installation can be plumbed in various configurations to account for various onboard situations.

    Optional components are also available for purchase to further customise your installation – such as an Auto Flush System, or Control Panel. 

    Rainman Autoflush System (Optional)

    Your Rainman Watermaker – like all onboard equipment, requires periodic care to maintain its efficiency. One of the most important aspects of maintenance is ensuring the membranes are flushed and pickled during periods of non-use.

    The Rainman Autoflush system will take over this task for you – ensuring that your system is flushed with fresh water regularly to maximise the life of your watermaker membranes.

    This optional rainman autoflush system incorporates a solid state programmable timer that will flush your system after each use and every seven days thereafter.

    With redundancy protocols should your vessel lose power – the autoflush system will have you covered.

    Rainman Control Panel (Optional)

    This optional control panel provides a remote management capability for your rainman watermaker system. It has been designed to be intuitive and user freindly in order to enhance your Rainman experience. 

    The Rainman control panel can easily integrate with your autoflush system to trigger a flush cycle after powering the watermaker off.

    Built in tri-colour LED keeps you on top of your water quality during production – taking the guess work out of desalination.

    Simple installation – no high voltage wiring or high pressure fittings.

     

    FEATURED VIDEO

    Thank you to our customers for taking the time to send in and record there experiences with there Rainman watermaker!.

    Our Customers

     

     

    “My experience with Seatask and the rainman watermakers has been excellent. Chrstopher Burton was extremely helpful and responsive in every step of the purchase/deliver/setup. He helped me figure out what I needed and shipped it quickly. The unit itself is great. Easy to setup, easy to use and exactly what we needed (a reliable, portable watermaker to extend our cruising range and reduce reliance on shoreside solutions in the Caribbean). Will likely buy another one next year for our fleet. I highly recommend this company and product..”

    Having a 4kw generator made the electric high output unit the best choice for us. The portable aspect was the clincher, not having to install parts and pieces was the second most important issue. Taking the water maker off the boat for the several months when we don’t cruise, and storing it in a closet at home, is huge. It was extremely easy to lift the unit out of the lazarette, set it on the deck and drop the hoses overboard.

    We spent 3 months in the Exumas Bahamas this past winer and unlike last year when we had to continually go to the dock to take on water we were able to produce our own water using the Rainman RO system. It worked beyond our expectations and produced water at about 30 gallons per hour. We hold 500 gallons and never ran out of water even with multiple guests on board. This product has saved us thousands by not having to install a permanent system on our boat and it is portable so other boats that travel with us are also able to produce water due to how portable it is. We are very happy with our choice to get the Rainman RO system.

    Chris and his team did a great job helping us with getting our unit through French Customs in La Rochelle. We used our Rainman watermaker on a daily basis as we spent forty days total (thirty at sea) crossing the Atlantic from La Rochelle to Tortola BVI. We had six on board and so each day we’d top up our tank averaging 150 litres a day which took the rainman about 11/4 hours to make from beginning to end. The system is simplicity itself and after the first couple of times became just a routine of life on board. Our skipper who has fought and lost with many types of watermaker was most impressed.

    Complete Supply Kit

    Each system purchased through Seatask comes complete with a supply kit of filters, strainer, pickling solutions and manuals – enough to allow you to have a fully functional and ready to use system and consumables right out of the box. (2 Months Supply)

    As Featured In..

    Rainman systems have been featured in countless articles, blogs, websites, youtube videos and have would numerous awards. This experience and global coverage ensure that you are investing in quality, reputable equipment – stood behind by a wide network of support personel, dealers and staff.

    Get In Touch

    +1 (305) 965-8775

    Location

    COVID NOTICE:

    Walk In’s / Store / Pickups suspened until further notice.

    Ft Lauderdale
    Florida, 33334

     

    Email

    info@seataskgroup.com

    Office / Phone Hours

    Mon:10am – 4pm
    Tue: 10am – 4pm
    Wed: 10am – 4pm
    Thur: 10am – 4pm
    Fri: 10am – 3pm
    Sat: 10am – 1pm
    Sun: Closed

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