FRESH WATER FLUSH PROCEDURE
Caution: The fresh water pressure should not exceed the range of the low pressure gauge/s. The
installation of a pressure reducer may be necessary.
If you don’t use your watermaker for the next three days, you will need to flush your system with fresh water or
infuse a biocide solution.
The fresh water flush prepares your watermaker for a shut down period of 7 days maximum.
1)
Open the pressure control valve all the way counter clock wise (two full rounds after the spring releases).
3) Close the seawater intake valve (sea cock) or switch the cleaning/storage valve to the closed position.
4) Open the fresh water flush valve on the active carbon filter. If the nylon tee with the flush/storage valve
is supplied switch the valve to the flush position.
Your vessel’s fresh water system pump should now turn on (larger pumps will cycle on and off). For the
next flush procedure, test how long it takes until the brine at the outlet becomes fresh. Allow fresh water
to flow until all salt water is flushed out of the RO System.
5) Open the seawater intake valve (sea cock) and switch the cleaning/storage valve to the seawater position.
Allow fresh water to flow until all salt water is flushed out of the pre-filter(s), boost pump and the sea
strainer (approximately 30 seconds, depending on the flow rate of your vessel’s fresh water system
pump).
6) Close the seawater intake valve.
MEMBRANE STORAGE PROCEDURE
If you intend to store your watermaker for more than 7 days, growth of microorganism will degrade the RO
membrane(s) performance.
The RO membrane(s) should be flushed with a biocide solution. This will preserve the membrane for long-term
storage of up to one year.
1.
If you have installed the optional fresh water flush system, back flush the pre-filter(s), the boost
pump and the sea strainer with fresh water and remove the pre-filter cartridge(s). Close the seawater
intake valve (sea cock).
2.
In a clean plastic container, mix 2.5 gallons / 10 litres of un-chlorinated fresh water with 100 grams
(1/3 container) of Echo Tec. Preservative # 3 (Metabisulfite) for the models 200-900. Mix 4 gallons /
15 litres of water with 150 grams (1/2 container) of preservative for the models 1200 and 1500.
3.
Switch the three-way valve to the cleaning/storage position. Switch the diverter valve to the
sample position.
4.
Open the pressure control valve all the way counter clockwise (two full rounds after the spring
releases).
5.
Infuse the solution with the cleaning storage hose while running the high pressure
pump at lowest RPM. Do not apply pressure. There will be no flow at the fresh water outlet.
Under best conditions your watermaker is now prepared for a shut down period of ten months.
Discard the product water for at least thirty minutes of initial operation, after storage, before
drinking or before use in food preparations.
Summary of Contents for Watermakers 200-BMS-1
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