MEMBRANE CLEANING PROCEDURE
The membranes of the ECHO Tec. Watermaker must be chemically cleaned when the
product water output drops by 20% of the specified amount. The frequency of this
occurring will vary greatly depending upon feed water. Fouling of the membranes will
naturally occur during normal
usage of the ECHO Tec. Watermaker. Increased amounts of fouling without proper
cleaning of the membrane will reduce the performance of your water maker. Cleaning of
the membranes will not enhance the quality (TDS reading) of the product water.
CAUTION: The use of chemicals or cleaning methods other than those outlined in
the cleaning instructions will void the ECHO Tec. warranty. Nonionic surfactants
for membrane cleaning or other chemicals not approved in writing by Echo Marine
Ltd. will void the element warranty.
CAUTION: Cleaning chemical #1 is an alkaline detergent. See warning label on
side of the container and observe all safety precautions on label.
CAUTION: Cleaning chemical #2 is an acid, a mineral scale remover. See warning
label on side of container and observe all safety precautions on label.
CAUTION: Do not mix different cleaning chemicals together. Do not use different
cleaning chemicals together at the same time. Mix the cleaning chemicals separately
and use them separately.
Note:
All cleaning and preserving procedures can be done with either seawater or non-
chlorinated freshwater. However, the cleaning process is more effective using non-
chlorinated freshwater.
To clean the ECHO Tec. reverse osmosis membranes mix one container (330gram) of
cleaning chemical #1 with 5gal / 20ltr of water at 104° F / 40° C.
Re-circulate (disconnect the reject water hose and lead it in the cleaning container) the
solution in intervals for up to one hour
without pressure
(observe the maximum
operating temperature of 112° F / 45° C). Open the pressure control valve all the way
anti-clockwise and start the high pressure pump only, by holding down the start-button in
the selector switch “Off” position. Do not allow the cleaning container to run dry or air to
enter the system.
It is important that the fresh water, remaining from the last flush is dumped before the
reject hose is led in the cleaning container to ensure the re-circulation of the undiluted
cleaning solution only.
Use cleaning chemical #1 first. If the performance does not improve, use the acid cleaner
#2 at the same ratio and instruction.
