RAINMAN WATERMAKER SPECIALISTS

GASOLINE rainman WATERMAKER

rainman portable watermaker logo

GASOLINE Rainman WATERMAKER

True portability – The gasoline rainman watermaker utilizes an onboard honda GXH 50 engine to mechanically drive the internal pumping components. 1/4 gallon of gasoline will operate the system for over an hour – enabling the production of up to 37 GPH of freshwater when paired with the Rainman Watermaker high output case.

Gasoline Systems are capable of up to

37 GPH

 

Rainman Watermaker

Pressure Supply Unit (Gasoline PSU)

Two Components – One System

The Rainman Watermaker 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. 

The Pressure Supply Unit is easily selected based upon your power supply onboard – so in this case no external would be required, as the system operates from its onboard 50cc honda GXH 50 Engine . The PSU lifts the seawater, filters out dirt and sediment then puts the system under high pressure for operation. A set of membranes are connected to the PSU to extract drinking water from the seawater  – which is the basic operation of the system.

 

Gasoline Pressure Supply Unit

This system required no external power source, so long as you have fuel. It is ideal if you don’t have a generator and need to conserve your battery bank. Not relying on external power gives maximum flexibility for taking it ashore, loaning it out, or using it in emergency situations.

Details

Technical Specifications

  • 2.1 HP Honda GXH50 (4-stroke) engine
  • 1/4 Gallon Gasoline = 70 Mins Operation
  • 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 – 73dB at 20ft 
  • Rotomoulded polypropylene case
  • PSU storage / mounting seat included

PSU Dimensions

  • PSU Weight 58lbs
  • L23.4″ x H17.7″ x D12.2″

Rainman Watermaker

Membrane Options

Two Components – One System

The Reverse Osmosis Membrane is ‘Part Two’ that will complete your Gasoline Rainman Watermaker Desalination System.
Membrane selection is a combination of size and product water requirements.
The membranes are available in three options: 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 high output membrane is the flagship model – designed specifically for the Rainman Gasoline  Pressure Supply Units. With the High Output Case, you can expect to produce between 26 – 37 GPH. This is our most popular and highest output option.

Details
  •  Compatible the Gasoline PSU
  • Produce Up To 37 Gallons Of Drinking Quality Water Per Hour.
  • Desalinate Sea, Brackish and Fresh water 
  • Twin 40″ Dupont Filmtec Membranes
  • Robust Polyethylene Case
  • 10ft Brine Discharge Hose
  • 10ft Product Water Hose + 33ft Extension
  • 16ft High Pressure hose (PSU connection)
  • Length – 46.6″
  • Depth – 5.1″
  • Height – 9.8″
  • Weight – 52lbs
  • 2 Year Rainman Warranty
  • Preffered Seatask Support 

COMPACT MEMBRANES

13 – 18 GPH

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

Details
  • Compatible with the Gasoline PSU
  • Produce Up To 18 Gallons Of Drinking Quality Water Per Hour.
  • Desalinate Sea, Brackish and Fresh water 
  • Twin 21″ Dupont Filmtec Membranes
  • Robust Polyethylene Case
  • 10ft Brine Discharge Hose
  • 10ft Product Water Hose + 33ft Extension
  • 16ft High Pressure hose (PSU connection)
  • Length – 27.2″
  • Depth – 5.9″
  • Height – 8.7″
  • Weight – 32lbs
  • 2 Year Rainman Warranty
  • Preffered Seatask Support 

ECONOMY MEMBRANES

13 – 18 GPH

The most economical companion to the Gasoline PSU. With the Economy Membrane, you can expect production rates between 13 – 18 Gallons Per Hour.

Details
  • Compatible with the Gasoline PSU
  • Produce Up To 18 Gallons Of Drinking Quality Water Per Hour.
  • Desalinate Sea, Brackish and Fresh water 
  • 40″ Dupont Filmtec Membrane
  • Robust Polyethylene Case
  • 10ft Brine Discharge Hose
  • 10ft Product Water Hose + 33ft Extension
  • 16ft High Pressure hose (PSU connection)
  • Length – 46.6″
  • Depth – 5.1″
  • Height – 9.8″
  • Weight – 23lbs
  • 2 Year Rainman Warranty 
  • Preffered Seatask Support 

 Financing

We accept all methods of payment, but we have also partnered with affirm to offer a range of financing options!

Click below to learn more.

Rugged and Robust

Rainman Watermakers are solid and robust portable desalination systems – designed for the rigors of the maritime environment and built with ingenuity, with the rainman gasoline systems being completely independent, and backed by the global and prestigious Rainman and Honda warranty. Check out the videos below to see out most popular portable desalination systems in action and why you too will love the Rainman Watermaker System.

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.

Less Than 10 Minutes

The Rainman Watermaker – portable configuration – comes ready to operate out of the box. With the first time set up of your portable desalination in as little as 10 minutes, you can benefit from a fully functional, and extremely robust portable desalination system right away – without the cost, downtime or complexity of installation.

Portable Desalination Rainman watermaker operations

Can The Rainman Gasoline System Be Used As A Generator?

No! The rainman gasoline watermaker is powered by a honda engine – which mechanically drives the pumps via a drive belt system – this does not produce electricity, and more importantly, keeps the energy purely mechanical to maximise system efficiency. 

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 $330 throughout the USA. PR / VIs and Caribbean usually runs around $550. 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, Packings and drivebelt 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. 

FEATURED VIDEO

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

Our Customers

 

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)

Purchase Online

Rainman systems are currently delivered within 7 business days from date of order online to all US locations. We use flat rate expedited shipping to ensure that your system reaches you in the shortest possible time frame. 

 

Get In Touch

+1 (305) 965-8775

Location

Ft Lauderdale
Florida, 33334

 

Email

info@seataskgroup.com

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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