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Rainman - Portable Fresh Watermaker


Portable Desalination System

Water Everywhere

Rainman watermakers are a compact and portable solution designed to generate a fresh water supply from salt or brackish water. Our system consists of a Pressure Supply Unit (PSU) which pressurizes the source water, and a Reverse Osmosis Unit, which desalinates the water with a membrane, removing impurities and creating fresh potable water. The optional Rainman flow gauge allows our system to be used in brackish or fresh water applications.

Built to last

We use only top quality components from the best manufacturers: Honda, DOW FILMTEC, General Pump, Jabsco. Our filters, membranes and replacement parts are non-proprietary for ease of service worldwide.

Versatile

Our system can easily be transferred between boats or used in remote land based locations. You can even use Rainman as a salt water pressure washer with our optional pressure gun attachment.

The Rainman Advantage

Convert Salty water from Sea to Fresh Water

Our simple and robust system is designed for ease of use and low maintenance. This fresh approach to desalination eliminates unnecessary componentry and electronics. Not only will the initial cost of a Rainman watermaker be lower than other systems, but the simple design and high build quality reduces ongoing maintenance costs.
Flexibility – choose to install your system or run it portable, allowing you to reduce weight while not cruising.
Reliability – using simple pumps and no electronics maximises the uptime of your watermaker.
Lower life cycle cost – not only will the initial price be lower, but ongoing maintenance cost is minimised.
High output – up to 140 litres per hour (37 gph).
Investment retention – keep your watermaker when you change boats.

Installed or Portable

Although the Rainman watermaker was originally designed as a portable system not requiring installation, many of our customers choose to partially or fully install the system in their boat.

Rainman Portable

Rainman Installed

Gasoline or Electric

The Rainman Pressure Supply Unit (PSU) is available with a Honda gasoline engine, or multiple electric options. Two AC options operate at either 220V/50Hz or 110V/60Hz, and a lower power 12VDC version.

Gasoline Pressure Supply Unit

Our original gasoline version of the pressure supply unit, perfect for those who want a completely self-contained watermaker without reliance on electricity of any type.

Electric Pressure Supply Unit

AC: 220V/50Hz or 110V/60HZ electric Pressure Supply Unit is optimised to run from a Honda 2kW generator or larger.
DC: Our 12VDC system operates at lower power and lower output and is ideal for running from solar / battery power.

Reverse Osmosis

Our Reverse Osmosis systems utilise DOW FILMTEC membranes and couples with a Rainman Pressure Supply Unit

High Output Reverse Osmosis Case

Two 40″ reverse osmosis membranes.

Compact Reverse Osmosis Case

Two 21″ reverse osmosis membranes.

Economy Reverse Osmosis Unit

Single 40″ reverse osmosis membrane.

Delivery within 5 business days

Electric 115V – 60HZ

Rainman Watermaker
115V – 60HZ ELECTRIC DESALINATOR

Ideal for use when you have a Honda 2kW generator or an in-built generator on board.

  • Sturdy polyethylene shell.
  • Totally enclosed fan cooled (TEFC) induction motor.
  • Draws 1300 watts in steady state operation.
  • Optimised for Honda 2kW generator or higher.
  • Pre-filter and housing externally mounted for ease of service.
  • Jabsco impeller pump to lift water and provide positive pressure to the high pressure pump.
  • General Pump WM series 316 stainless steel high pressure pump, the workhorse of the RO industry.
  • General Pump relief valve to prevent overpressurisation and allow for pressure washing.
  • Sturdy 5 metre draw hose fitted with one way valve so it remains primed, with detachable strainer.
  • High pressure stainless steel quick couple outlet for connection RO membrane unit or pressure washer gun.
  • Five 5 micron pleated paper pre-filter cartridges included.
  • 1kg (2.2 lb) bag pickling solution powder included.
  • Couples with one of our reverse osmosis membranes, ordered separately.
  • Can also be coupled with RO membranes from other suppliers.
  • Can be coupled with optional pressure washer gun.
  • Dimensions: Length 722mm (28.4″), Width 300mm (11.8″), Height 370mm (14.6″)
    Weight: 28.5kg (63lb)

Condition: new

 Economy


$5,544.17

50 to 70 litres per hour (13 to 18 gph)
Length 1,200mm (47.2″), Width 100mm (3.9″), Height 100mm (3.9”).
Weight: 11.0kg (24lb).

Compact


$6,512.35

50 to 70 litres per hour (13 to 18 gph)
Length 690mm (27.2″), Width 150mm (5.9″), Height 220mm (8.7”).
Weight: 14.5kg (32lb).

High Output


$6,764.33

100 to 140 litres per hour (26 to 37 gph)
Length 1,180mm (46.5″), Width 130mm (5.1″), Height 250mm (9.8″)
Weight: 23.5kg (52lb).

Electric 12V DC

Rainman Watermaker
12V DC ELECTRIC DESALINATOR

This lower power, lower output system is ideal for use when you are running solar / battery for your main power source

  • Sturdy polyethylene shell.
  • Permanent Magnet totally enclosed fan cooled (TEFC) DC motor.
  • Draws 32 amps (400 watts) including integrated lift pump in portable configuration (current draw may vary +/- 10%).
  • Can be configured to draw 25 amps (300 watts) by bypassing integrated lift pump and providing your own boost pump.
  • Pre-filter and housing externally mounted for ease of service.
  • Integrated impeller pump to lift water and provide positive pressure to the high pressure pump.
  • General Pump WM series 316 stainless steel high pressure pump, the workhorse of the RO industry.
  • General Pump relief valve to prevent overpressurisation.
  • Sturdy 5 metre draw hose fitted with one way valve so it remains primed, with detachable strainer.
  • High pressure stainless steel quick couple outlet for connection RO membrane unit.
  • Five 5 micron pleated paper pre-filter cartridges included.
  • 1kg (2.2 lb) bag pickling solution powder included.
  • Couples with one of our reverse osmosis membranes, ordered separately. (note: not compatible with high output RO case)
  • Dimensions: Length 722mm (28.4″), Width 300mm (11.8″), Height 370mm (14.6″)
  • Weight: 26.5kg (58lb)

 

Condition: new

Economy


$5,899.06

26 to 34 litres per hour (7 to 9 gph)
Length 1,200mm (47.2″), Width 100mm (3.9″), Height 100mm (3.9”).
Weight: 11.0kg (24lb).

Compact


$6,867.24

26 to 34 litres per hour (7 to 9 gph)
Length 690mm (27.2″), Width 150mm (5.9″), Height 220mm (8.7”)
Weight: 14.5kg (32lb)

Gasoline

Rainman Watermaker
Petrol (Gasoline) Pressure Supply Unit

FULLY SELF-CONTAINED. NO EXTERNAL POWER SOURCE REQUIRED.

  • Our original petrol (gasoline) version of the pressure supply unit perfect for boats with 12V electrical systems or people using the system off grid.
  • Sturdy polyethylene shell with removable front hatch for easy access.
  • Honda GXH50 50cc, 1600W (2.1 hp) petrol (gasoline) powered engine.
  • Pre-filter and housing externally mounted for ease of service.
  • Jabsco impeller pump to lift water and provide positive pressure to the high pressure pump.
  • General Pump WM series 316 stainless steel high pressure pump, the workhorse of the RO industry.
  • General Pump relief valve to prevent overpressurisation and allow for pressure washing.
  • Sturdy 3 metre draw hose fitted with one way valve so it remains primed, with detachable strainer.
  • High pressure stainless steel quick couple outlet for connection RO membrane unit or pressure washer gun.
  • Five 5 micron pleated paper pre-filter cartridges included.
  • 1kg (2.2 lb) bag pickling solution powder included.
  • Couples with one of our reverse osmosis membranes, ordered separately.
  • Can also be coupled with RO membranes from other suppliers.
  • Can be coupled with optional pressure washer gun.
  • Dimensions: Length 595mm (23.4″), Width 310mm (12.2″), Height 450mm (17.7″)
  • Weight: 26.5kg (58.3lb)

Condition: new

Economy


$6,731.73

50 to 70 litres per hour (13 to 18 gph)
Length 1,200mm (47.2″), Width 100mm (3.9″), Height 100mm (3.9”)
Weight: 11.0kg (24lb).

Compact


$7,699.91

50 to 70 litres per hour (13 to 18 gph)
Length 690mm (27.2″), Width 150mm (5.9″), Height 220mm (8.7”)
Weight: 14.5kg (32lb).

High Output


$7,951.89

100 to 140 litres per hour (26 to 37 gph)
Length 1,180mm (46.5″), Width 130mm (5.1″), Height 250mm (9.8″)
Weight: 23.5kg (52lb).

*Please note: Prices do not include applicable shipping fees (approx. $375CAD) taxes or duties.

Prices for Rainman Portable Waterakers

We are official distributors for Vancouver, Canada


Rainman Products Rates
Pressure Supply Unit
PSU – Electric (220V or 110V) $3,880.33
PSU – Electric (12VDC) $4,213.90
PSU – Gasoline $5,142.97
Compact $6,180.13
*with your choice of one of the following*
Reverse Osmosis Membrane
RO – High Output $2,582.55
RO – High Output Naked $2,407.94
RO – Compact $2,299.80
RO – Compact Naked $2,224.22
RO – Economy $1,422.88
Note: High Output R/O is compatible with 110v/220v or Gas PSU only
Extras
Pressure Washer Gun $205.87
Pre-Filter Cartridge $9.12
Digital Hydrotester $72.95
Jabsco Impeller $40.39
Brackish Water Flow Gauge $388.64
Pickle Solution Mix $19.54
Canvas Cover for PSU $95.12
40″ Filmtec R/O Membrane $328.36
21″ Filmtec R/O Membrane $286.66
*Excluding applicable tax and duty
**All prices in Canadian Dollars
***Prices are subject to change without notice