Platinum Marine Sales  is proud to promote Powergen  Onboard water makers and power generators These Australian built watermakers represent tremendous value for money and are available at a fraction of the cost of the expensive imported watermakers. Each unit is rigorously tested using seawater from the Broadwater on the Gold Coast before being dispatched to customers. The Budget watermaker range is designed to meet the needs of cruising yachties on a budget. It relies upon the boat owner to monitor water production quality and to flush the unit regularly. The Budget watermaker is available in the following models 30L/HR, 60L/HR (Long), 60L/HR (Short). The Budget watermaker range can be run from a 2000W Inverter or small generator. The Basic watermaker range is designed to provide the maximum amount of fresh potable water for a reasonable cost. It relies upon the boat owner to monitor water production quality and to flush the unit regularly. The Basic watermaker is available in the following models 30L/HR, 60L/HR, 90L/HR, 120L/HR and 180L/HR. The Auto Flushing watermaker range is designed to provide all the water you want in a simple low maintenance configuration. The Auto Flushing watermaker is for boat owners that would rather be enjoying good company and beautiful scenery than maintaining their watermaker. The Auto Flushing watermaker is available in the following models 60L/HR, 90L/HR, 120L/HR, 180L/HR and 360L/HR. Powergen also supplies 30L DC watermakers (12v or 24V). These units are super effecient, with the high pressure pump consuming only 125W of power and total consumption under 170W (14 amps at 12v) these units are imported from France and are backed up by a worldwide distribution network. These units weigh more, and cost more than the Budget range of watermakers but are ideal for DC only boats with a limited source of power. Proudly Australian designed and manufactured Manufactures of high quality watermakers and desalination plants in Australia under the brand of Onboard Water. The Onboard Water range of watermakers represents the latest in design and technology in the industry. Our dedicated staff are able to design and build a unit to suit your exact needs. Our diverse range of products include domestic canal home watermakers, industrial reverse osmosis water treatment plants, commercial desalination plants for resorts and small watermakers for boats. The following table indicates what substances can be removed by using our reverse osmosis systems. It should be noted that percentages may vary as feed water chemistry varies. Substance Rejection Rate Substance Rejection rate Sodium 94%-98% Lead 96%- 98% Sulfate 97%-98% Arsenic 94%-96% Calcium 95%-98% Magnesium 90%-95% Potassium 95%-97% Nickel 90%-95% Nitrate 92%-95% Fluoride 93%-95% Iron 90%-95% Maganese 90%-95% Zinc 92%-95% Cadmium 90%-95% Mercury 90%-95% Barium 90%-95% Selenium 90%-95% Cyanide 90%-95% Phosphate 90%-95% Chloride 90%-95% Aluminum 90%-95% Copper 90%-95% Strontium 90%-95% Silver 90%-95% Chromium 90%-95% Bicarbonate 90%-95% Chromate 90%-97% Radioactivity 90%-95% Protozoa 99% Asbestos 99% Ameobic Cysts 99% Sediment 99% Giardia 99%     Hydrocarbons, Proteins, Pesticides, Herbicides, Insecticides, Trichlorethylene & THMs (chlorine by-products) will be rejected at 90% or greater.

How Reverse Osmosis Desalination Works
Semipermeable Membranes are at the heart of RO Systems
The process of reverse osmosis (RO) represents the finest level of liquid filtration available today. While ordinary liquid filters use a screen to separate particles from water streams, an RO system employs a semipermeable membrane that separates an extremely high percentage of unwanted molecules.

For example, the membrane may be permeable to water molecules of dissolved salt. If this membrane is placed between two compartments in a container, and a salt solution is placed in one half of the container and pure water in the other, water passes through the membrane while the salt cannot.

Pressure is applied to reverse natural osmotic flow
Now a fundamental scientific principle comes into play. That is, dissimilar liquid systems will try to reach the same concentration of materials on both sides of the membrane. The only way for this to happen in our example is for pure water to pass through the membrane to the salt water side in an attempt to dilute the salt solution. This attempt to reach equilibrium is called osmosis. However, if the goal in our water purification system is to remove the salt from water, it is necessary to reverse the natural osmotic flow by forcing the salt water through the membrane in the reverse direction. This can be accomplished by applying pressure to the salt water as it is fed into the system, creating a condition known as "reverse osmosis."

Cross-Flow Filtration Permits Long-Term Performance
While the principles of reverse osmosis are simple, in practical terms, the RO process cannot go on indefinitely unless steps are taken to ensure that the membrane does not become clogged by the precipitated salts and other impurities forced against by the pressurized stream of feed water. To significantly reduce the rate of membrane fouling, RO systems employ cross-flow filtration, which allows water to pass through the membrane while the separate flow of concentrate sweeps rejected salts away from the membrane surface.

Watermakers RO systems are designed optimal performance, minimal maintenance and long life.