Qt Series Cell - Horizontal Installation Diagram - Watermaid WM10LED Owner's Handbook Manual

Generally, the precious coating on the anode is lost at a rate of 1 microgram per amp hour. This
usually means a WATERMAID Cell will have a 5-10 year life.
The use of neat (undiluted) acid solutions will deteriorate the precious coating of the electrode,
drastically shortening the life of the Cell.
Poor water flow, overheating, and heavily encrusted electrodes allow chlorine gas to etch
the titanium base and cause the precious coating to shed.
Such conditions VOID WARRANTY. Obvious signs of these conditions are a whitening of the
Cell casing and a change in colour of the anode.
To check Cell performance, place Cell in a bucket with 25 litres (6.6 gal) of pool water at 20 o C
(68 o F) with 6000 ppm salt. The dome section of EZ300 Cells should NOT be submersed. The
Cell should produce 1 ppm chlorine within 5 seconds. If the Cell fails this test and it has been
cleaned, then a new Cell may be needed.
(vi) NO WATER FLOW AND THE CELL
If water fails to flow to the return-to-pool/spa line (e.g. in the case of blocked skimmers, closed
valves, draining of the pool/spa or during backwashing) and the WATERMAID Cell is without water
while it is switched on, hydrogen gas can build up, heat may generate and the Cell casing may
expand and turn white, until the gas sensor switches the Cell off. This practice is NOT
recommended.
N.B. Backwashing is the process whereby the water flow in the filter is reversed. In reversing the
water flow, the accumulated waste material in the filter is flushed out.
When no water flows through the return-to-pool/spa line, the WATERMAID Power
Supply should be switched OFF or set to the standby mode (refer to section 4).
8. SALT LEVEL
At the beginning of the swimming season, the salt level should be checked to ensure that it is
6000 ppm (0.6 %).
A salt level of 9000 ppm is isotonic with body tissue, and in the case of accidental immersion, will
cause less damage to lungs and other body organs than water without salt. Water at the
recommended 6000 ppm is near isotonicity and the water is pleasant and does not irritate.
Salt should be replaced after water has been lost from the pool in any way. Refer to section
3(ii) for adding salt. SALT IS NOT LOST by the electrolysis process or when water evaporates. It
can be lost, only in the following ways:
1. Backwashing - after 20 backwashes approximately 1 bag of salt is lost.
2. Pool overflow (rainfall, flooding etc).
3. Splash out from bathers.
4. A leak in the pool or plumbing.
Each year, approximately one-third of pool water is lost so the salt level will need to be adjusted
accordingly.
Refer to section 3(ii) for adding salt.
To reduce the amount of salt lost by backwashing for long periods of time, place the garden hose,
turned on full, into the skimmer box during backwashing.
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