CELL MAINTENANCE
Where calcium levels are below 200ppm, the mineral content is low and the water is
correctly balanced, little or no maintenance to the cell is normally required. The automatic
reversing of the electrode polarity will be sufficient to dissolve the calcium scale formed.
Periodic inspections must however be made to ensure scale and or debris is not forming
or building up on the electrodes within the cell. If a calcium scale has formed it must be
removed by cleaning in an acid solution.
Where calcium levels are higher than 200ppm and or mineral content is high, regular
inspections of the cell must be performed. If calcium scale is present, the cell must be
cleaned in an acid solution. The higher the water temperature, the greater the capacity for
the water to deposit scale on the cell. Each pool will vary with regard to the frequency of
cell maintenance. Factors which increase the cell cleaning frequency are:
• Calcium Hardness above 200ppm
• High Water Temperatures
• Low water velocity
• Poor Water Balance
• Excessive salt level
• Electrode breakdown – ensure a qualified technician evaluates the cell
TO REMOVE & INSPECT THE ELECTRODE
• Switch off power to the chlorinator and pump(s).
• Close all relevant valves – especially where the cell is located lower than the pool
water level, or where the pump(s) are significantly above the water level.
• Unplug the cell cable from the cell, and place cable end in a dry location.
• Loosen the large cell nut, and remove it from the cell.
• Carefully remove the electrode from the cell housing. Where the cell is located
above the pool water level, and the cell is not completely isolated by valves, beware
that there may be a vacuum in the cell housing. This can sometimes make the
electrode difficult to remove. Take care not to lose the o-ring.
Depending on your system setup, the vacuum can sometimes be relieved by briefly
pushing down on the multi-port valve handle on a sand filter, or by opening a relief
or drain valve momentarily.
• Visually inspect for debris accumulated at the bottom of, or between the electrode
plates. Most debris can usually be cleared by simply dunking the electrode up and
down rapidly in water. Excessive debris could indicate a filtration problem.
* DO NOT USE A METAL TOOL TO REMOVE DEBRIS AS THIS WILL DAMAGE
THE ELECTRODE COATING!!
* DO NOT ATTEMPT TO MANUALLY REMOVE ANY CALCIUM SCALE
• Visually inspect between the electrode plates for calcium build up. This appears as
a hard white material that coats the surface of the plates and can also bridge the
gap between the plates. Electrode plates should be smooth and matte black.
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