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5 – CLEANING OF THE MEMBRANE
When should the membrane be cleaned?
In normal operation, the R/O membrane can be clogged by mineral and organic deposits, which accumulate until they cause a drop in fresh
water production quality and quantity. The membrane should be cleaned each time the quantity or the quality of the produced water changes
excessively. Before proceeding with membrane cleaning check that the change in performance has no other cause, such as:
- Low seawater temperature,
- Filter clogged, water system badly drained, leading to lack of water at the pump,
- Inefficient operation of the HP pump: leaks...
- Cell clogged.
Cleaning of the membrane can only be carried out when it’s inside the pressure vessel. Never take a membrane out
of its pressure vessel.
How should the membrane be cleaned?
See the 3.4 – Wintering procedure « Cleaning » page 32
In case of long stopping, proceed with preservation operation See page 32
NOTA :
Membrane cleaning can be done in the factory or by your agent in a more thorough way, on a specialised bench. Contact
your agent or the factory directly.
When should the membrane be replaced?
A membrane has a lifetime of about 5 years. Then, as the plastic materials harden, the pores retighten and production will decrease. Then,
you must replace the membrane. If the membrane has accidentally taken in fuel or oil, it must be replaced. The membrane is one of the
elements most expensive and more fragile of the watermaker, it is necesary to take care by respecting the orders of maintenance.
To replace a reverse osmosis membrane, please contact us directly or through one of our dealers, to obtain the membrane replacement
specification sheet, by telling us the serial number of the membrane.
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