MEMBRANE SELECTION

You have selected the:

Gasoline PSU

Now on to membrane selection….

What is a Membrane?

The Membrane is ‘Part Two’ that will complete your Rainman Watermaker System.
The membranes recieve the high pressure water from the Pressure Supply Unit (selected in the last step) and, using reverse osmosis, allows the pure water to separate from the incoming source water.
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 – and is certainly safe to drink. You will place this product water hose in your fresh water tanks to fill.

How To Choose Your Membrane

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 Economy is designed to be budget friendly but still provide a 13-18 GPH output
The compact is designed to have a smaller ‘footprint’ – in-demand for space conscious owners – whilst still providing an impressive 13-18 GPH
The High Output membrane is the flagship model, and the most popular, membrane selection – capable of 26-37 GPH, this system would provide a rapid and substantial supply of fresh water at a moments notice. Capable of large tank fills, or topping off smaller tanks in a minimal time frame. 

Can I Install The Membrane?

Yes – if you intend to install the membrane initially, we would recommend ordering the ‘Naked’ versions – in this configuration, we provide the gauge and valve on a line of HP hose for ease and flexibility of installation.
Membranes that come in the case can also be installed by simply affixing the membrane case to the location of intended install via the mounting brackets that we include with the system.

Step 2

Select Your Membrane

Select The Membrane That Best Works For You Below To Continue...

High Output Case

26 – 37 GPH

Compact Case

13 – 18 GPH

Economy Case

13 – 18 GPH

HIGH OUTPUT DETAILS
  • Compatible With Gasoline System
  • 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 – 51lbs
  • 2 Year Rainman Warranty 
  • Preffered Seatask Support 
COMPACT DETAILS
  • Compatible With Gasoline System
  • 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 – 31lbs
  • 2 Year Rainman Warranty 
  • Preffered Seatask Support 
ECONOMY DETAILS
  • Compatible With Gasoline System
  • Produce Up To 18 Gallons Of Drinking Quality Water Per Hour.
  • Desalinate Sea, Brackish and Fresh water 
  • 40″ Dupont Filmtec Membranes
  • Robust Polyethylene Case
  • 10ft Brine Discharge Hose
  • 10ft Product Water Hose + 33ft Extension
  • 16ft High Pressure hose (PSU connection)
  • Length – 23.6″
  • Depth – 5.1″
  • Height – 9.8″
  • Weight – 22lbs
  • 2 Year Rainman Warranty 
  • Preffered Seatask Support 

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.

1
  • Item added to cart
1
Your Cart
$225.00
    Calculate Shipping
    Calculate shipping
    Apply Coupon