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Rainman Water Maker Systems Petrol, Electric 230V or 12V - New 2019 Model


At long last a Water Maker company that has cut out all the jargon and brought us an easy to use both portable and installed system. Basically you decide what power unit you want and then how much output of water you require put those together and off you go, what could be simpler and if I can get my head around this then anybody can. Available in both electric and petrol formats. Easily portable or as a fixed application the Rainman Water Maker suits everybody's requirement.

A non complex system that is easy to operate and within minutes have fresh drinking water on stream. the system is simple, robust and designed for ease of use and maintenance. This fresh approach to desalination eliminates unnecessary componetary and electronics. Not only will the initial cost of a Rainman water maker for your boat be less than other systems, the simple design and high build quality means ongoing maintenance cost will be lower. With output ranging from 50 litres up to 140 litres there is a Rainman System to suit everybody.

All systems come with the following

  • 5 x Pre Filter
  • 1 x Pickling Solution
  • 3 metre (10 ft) input hose with quick fit connector for connection to pressure supply unit, won’t mark your deck.
  • 3 metre (10 ft) food grade polyurethane fresh water delivery hose.
  • 10 metre (33 ft) food grade polyurethane extension hose for reaching your forward water tank.
  • 3 metre (10 ft) brine waste hose.

If you are using the 230V - 50 HZ Pressure Supply Unit it requires a 2Kw Generator or more to operate it. The Honda 2 Kw is ideal. 

We have a good knowledge of these systems, not only with what would best suit your boat, but if you are going Extended Cruising or Round the World, what spares and accessories to take with you. Give us a call or email, i promise we don't bite.

We ship Worldwide so why not ask for a quote.

We can supply the Pressure Supply Unit and Reverse Osmosis Units as separate units. Please ask for a quote.

Package Pricing

Rainman Pressure Supply Electric with Compact Reverse Osmosis Unit 50 - 70 litres per hour £4420.00

Rainman Pressure Supply Petrol with Compact Reverse Osmosis Unit 50 - 70 litres per hour £5199.00

Rainman Pressure Supply Electric with High Output Reverse Osmosis Unit 100 - 140 litres per hour £4699.00

Rainman Pressure Supply Petrol with High Output Reverse Osmosis Unit 100 - 140 litres per hour £5399.00

Rainman Pressure Supply Electric 12V with Compact Reverse Osmosis Unit 26 - 34 litres per hour £4499.00

Go to base of page to select required model/s, if unsure or further advice required please contact us.

See website for Spares & Accessories.

 Key Features

  • Optional flow gauge for using system in brackish or fresh water applications
  • Great for people who cruise and race by offloading the weight to lighten your boat
  • Simple process to "pickle" the reverse osmosis membranes for long term storage
  • Doubles as a saltwater pressure washer with optional pressure gun washer
  • Take your Rainman water maker with you when you upgrade to a new boat
  • Non-proprietary filters, membranes and replacement parts for service worldwide
  • Easily transferred between boats ideal for sharing amongst friends
  • Top quality major components : Honda, Dow Filmtec, General Pump, Jabsco

Specification and Options

  • Pressure Supply Electric : 230V/50Hz 1300W Requires Minimum Generator / Inverter of 2KW
  • Pressure Supply : Petrol Honda 50cc 4 Stroke Motor : No External Energy Source Required
  • Reverse Osmosis Option : High Output 2 x 40" RO Membrane 100 - 140 lph ( 23-32 gph)
  • Reverse Osmosis Option : Compact 2 x 21" RO Membranes 50 - 70 lph (12-16 gph)
  • Reverse Osmosis Option : Economy 1 x 40" Membrane 50 - 70 lph
  • Pressure Gun : Optional Extra. Part Number WW-RMPRESS see website for details
  • See images showing typical usage
  • Other Rainman Spares available see Website

Product Dimensions & Weights

  • Pressure Supply Unit 230V - 50HZ: Length 772mm (28.4"), Width 300mm (11.8"), Height 370mm (14.6") Weight: 28.5kg (63lb)
  • Pressure Supply Unit Petrol (Gasoline) : Length 595mm (23.4"), Width 310mm (12.2"), Height 450mm (17.7"), Weight: 26.5kg (58.3lbs)
  • Pressure Supply Unit 12V DC: Length 772mm (28.4"), Width 300mm (11.8"), Height 370mm (14.6") Weight: 26.5kg (58lb)
  •  Reverse Osmosis High Output in Case: Length 1,180mm (46.5"), Width 130mm (5.1"), Height 250mm (9.8"), Weight: 23.5kg (52lb)
  • Reverse Osmosis Compact in Case: Length 690mm (27.2"), Width 150mm (5.9"), Height 220mm (8.7"), Weight: 14.5kg (32lb)











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