IMPORTANT:
* It is important to note that for BOTH EZY300 and QT Series Cells, the sensing tang
(the small metal tang located on the inside of the Cell casing above the mesh electrode)
also needs to be kept clean and free of scale.
* Do NOT tap the Cell casing with any instruments.
*Boiling water is NOT recommended in Cell cleaning as it may discolour the Cell casing.
*NEVER POUR UNDILUTED ACID DIRECTLY INTO THE CELL.
* ALWAYS ADD THE ACID TO THE WATER.
*WEAR RUBBER GLOVES when handling acid.
*Always have nearby either a hose or a bucket of water for accidental spills. Please read
the manufacturer's safety precautions when handling acid.
(iv) DISCONNECTING THE CELL FROM POWER SUPPLY
*Turn OFF the power to the WATERMAID at the power outlet.
*Unscrew the cover of the black junction box located at the base of the WATERMAID
Power Supply.
*Unscrew the single screw holding the Cell Cable, as well as the 3 brass screws holding
the 3 wires.
*When reconnecting the wires, ensure the connection is TIGHT and that the wires are
connected correctly [refer to section 3(v)].
(v) AGE OF THE CELL
After a number of years the active coating on the anode (mesh electrode) will wear away.
At a much slower rate, the solid centre electrode will also wear away. Calcification, acid
cleaning, current density and solids in the water contribute to the wear rate of the
electrodes.
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 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 allow 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
the
Cell's
performance,
place
it
in
a
25 litre
(approx.
7
gal)
bucket
of
pool
water
with 6000-ppm salt. The Cell should produce a 1-ppm chlorine level within 5 seconds
using the 7.4VDC WATERMAID Power Supply if the salt level is 6000 ppm and the
water temperature is 20oC (68oF).
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 or spa line (e.g. in the case of blocked
skimmers, closed valves, draining of the pool/spa or during backwashing) and the