Cell Cleaning
The Ozone XLM Series Cell is self-cleaning, however, some conditions such as very hard
water can cause the cell to become scaled over time.
Do not remove the cell straps (holding the electrodes in place) when cleaning.
The Ozone XLM Series Cell uses an electronic means (polarity reversal) to remove scale
from its cathodes. This system works very well in most pools unless there is extreme
hardness and/or mineral levels. Even in the extreme cases where scaling does occur the
rate at which it occurs is far slower than for normal Cells.
Minerals: the magnesium in mineral salts can form a soft scale on the cell even though it
is reversing polarity. This is minimised by keeping the pH at the lower range for your pool
type. Soft mineral scale can generally be hosed off with a strong jet of water.
If scale has become thick enough to nearly bridge between the Cell electrodes, it is time to
clean the Cell. Cells can be cleaned in a solution of hydrochloric acid.
Please read the warnings and instructions on the acid container.
To make the acid solution, add 1 part hydrochloric acid to 4 parts water in a suitable
container. This solution can be used a number of times so a re-useable container with a lid
can be used, but make sure it is stored safely.
Alternatively a commercial Cell Cleaning solution can be used according to the
manufacturer's instructions.
The Ozone XLM Series unit should be turned off so that any AutoMode functions cannot
turn it back on until after the Cell is clean and back in its housing.
Remove the Cell from its housing and immerse in the acid solution. Note that it may foam
up and overflow the sides of the container – so take care!
The Cell should not take longer than a few minutes to clean. It may also be possible to
remove some or most of the scale with a jet of water.
Never use a stiff brush or hard implement to clean the cell because this will damage
the coating.
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