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Technology Overview


Fresh Water—Plenty of Fresh Water Greatly Improves The Quality Of Life On Board

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Think of long showers and wash downs. The Spectra system with its low power draw and high capacity will give you lots of water without overtaxing your electrical system.

On board energy is limited and expensive so the size of a watermaker is not as important as how much water can be made for a given amount of energy. The Catalina 300 MkII gives you more water per unit of energy than any other system, approximately 1 amp-hour per gallon.

The Spectra Clark Pump



NOTE: Actual speed is twelve seconds per cycle.

Developed in 1997, and improved continually since then, the Spectra Clark Pump features a unique two stage pumping and pressurizing system. The first stage is a simple diaphragm or vane feed pump which supplies raw water flow and pressure for prefiltration, circulation, and the driving energy for the second stage, the Clark Pump.

The Clark Pump is a unique pressure intensifier that uses two opposing cylinders and pistons that share a single rod. Water pressure from the small feed pump is used by one of the cylinders to make the other pressurize and circulate the saltwater through the reverse osmosis membrane. Pressurization is achieved when the rod, as it is forced into a cylinder, displaces water in the closed loop circuit. The pressure instantly rises to the point where the displaced volume of water is forced out of the membrane as the fresh product. When a driving cylinder's piston touches the base, the process is instantly reversed.

Pressurization is almost continuous. There is no energy wasting "back stroke" like in other systems and no need for gears or crank shafts that need oil and servicing. All moving parts are made of non-corrosive materials

The most efficient marine watermaker available!

Spectra Clark Pump

The Spectra Watermachine with its unique Clark Pump is the most efficient marine watermaker available! With models producing between 150 and 10,000 gallons (590 - 37,854 L) per day with efficiencies running between 10 and 20 watt hours per gallon.

Check out the 12 volt DC Catalina MkII, which produces 12.5 gallons per hour on 15 amp hours (180 watts), or the Farallon 2800, which produces 120 gallons per hour on just 1.2 kilowatts! Then check out the competition and compare!

The Spectra Pearson Pump

Pearson Pump diagram

The newest addition to the Spectra Watermakers line of energy saving desalination products is based on the revolutionary Spectra Pearson Pump. Developed with tens of thousands of hours in the field and in the lab, this pump is truly a robust, energy efficient, and reliable pump. Trusted by international relief agencies like UNICEF, the US Military and Red Cross; desalination systems built using Pearson Pump technology are currently operating in some of the harshest environments on the planet!

Farallon 1800—the highest capacity DC marine watermaker available!

Farallon 1800

The Farallon 1800 is the highest capacity DC watermaker available in today's marine market! No one else can produce 1800 gallons per day (6800 L) on 24 VDC!

Special Features

Exceptional energy efficiency
Quiet continuous operation
Fully automatic operation with the MPC 3000
Full range of sizes to meet your vessels needs
Ideal for solar and/or wind powered systems
Easy to install modular designs
Product water flow unaffected by sea water temperature
12V, 24V or AC powered units available
No gears or crank shafts that need oil and service

Don't make a choice until you've considered a Spectra Watermaker!

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