The original Rainman watermaker was our petrol (gasoline) powered system. In 2014, our first version of this system made the industry ask “Why didn’t someone think of a portable watermaker before this?”

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.

The system is made up of a pressure supply unit (PSU) and a reverse osmosis unit (RO). Both parts are required to make a complete watermaker. The PSU lifts the seawater, filters out the sediment and puts the system under high pressure, while the RO unit extracts fresh water from the stream of pressurised seawater. Most of the water goes out to waste as brine output, while about 20% of the volume is extracted as fresh potable water for your tanks. Different RO options exist for you to select with your AC Rainman system, each to achieve their own specific objective.

Benefits of Petrol (Gasoline) Power

Petrol (gasoline)  exists on most boats already, so there is good reason why you may consider using it to power your watermaker. Some of the key benefits of using a separate motor for your watermaker include:

• Simplicity – For a portable configuration, there are only two boxes to set up and no need for external electricity.
• Redundancy – If your generator / inverter fails, you can still make water.
• Efficiency – There are no conversion losses between mechanical and electrical energy. Depending on water temperature, and source water salinity, you would expect a fuel to fresh water production ratio of about 150:1.
• Security – If you are in an urban survival situation after a natural disaster, a portable generator has very broad utility and greater chance of being stolen, rendering an AC system useless.

Features of Petrol (Gasoline) Watermaker

2.1HP Honda GXH50 (4 stroke) motor700 ml (1.5pt) fuel / 70 minutes operationIntegrated flexible impeller lift pump uses non-proprietary impeller2 metre (6 ft) maximum lift above sea levelGeneral Pump WM 316 stainless steel high pressure triplex plunger pumpGeneral Pump 316SS/ceramic relief valve to prevent overpressurisationSound levels – 73dB at 6 metres (20 ft) – see chartCase of sturdy moulded polyethyleneRO Case (mountable if desired): rotomoulded polyethyleneSingle 10″ x 2.5″ non-proprietary 5 micron prefilter to remove sediment mounted on PSU0 – 150lph (40gph) product water flow meter, integrated into RO case5 metre (16 ft) intake hose fitted with one way valve to remain primed, with detachable strainer3 metre (10 ft) brine waste discharge hosePSU weight: 26kg (58lb)PSU Dimensions: 595 x 450 x 310mm (23.4 x 17.7 x 12.2″)Related RO weight– High Output: 23kg (51lb)
– Compact: 14kg (31lb)
– Economy: 11kg (24lb)Related RO dimensions
– High Output: 1,180 x 250 x 130mm (46.5 x 9.8 x 5.1″)– Compact: 690 x 220 x 150mm (27.2 x 8.7 x 5.9″)– Economy: 1,180 x 250 x 130mm (46.5 x 9.8 x 5.1″)
 

***Our systems are shipped from Sydney, Australia.  Flat rate Shipping fee of $400 will be billed before shipping.  ***