Davey ProMatic 24, Installation & Operating Instructions Manual

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Note: Your ProMatic chlorination cell guarantee is for a set number of hours (10,000) running the
cell, which is monitored by your chlorinator. For typical installations with a run time of eight hours
per day this will extend to approximately three (3) years, however longer run times will reduce the
expected life of the cell.
DAILY RUN TIME
As chlorination can only occur while your filtration pump is running, you need to ensure that the total pump
run time is long enough to circulate all of the water in your pool through the filter at least once per day.
Take for example, a 50 kilolitre pool running with a 250 litre per minute pump. 50,000 ÷ 250 = 200 minutes.
That means a minimum run time of 3 hours and 20 minutes per day.
Sunlight exposure and water temperature will also greatly affect how long your chlorinator needs to be run
each day. During summer we recommend that you run your chlorinator for eight hours per day, whereas
during winter approximately four to six hours should provide enough chlorine. Without sufficient filtration and
chlorination, your pool will never function correctly. In extremely hot weather or during periods when several
bathers are using the pool, the running time may need to be extended or the cell production percentage
increased.
After testing your pool water you may find your chlorine level to be too high, that is, greater than 3 ppm.
To determine if this is the case, run the chlorinator for the suggested run time and test your pool water on
the morning after operation. If your chlorine test shows a high level of chlorine, you can reduce the cell
production percentage or alternatively reduce the run time. Test your chlorine level again the following
morning at around the same time. If your chlorine level is still high, repeat the above process until the correct
level is obtained, ensuring that your run time is still long enough to filter all of the pool water within a 24 hour
period. If the level is too low either increase the cell production percentage or set a longer run time.
For variable speed and low speed pumps the run time will have to be longer in order to ensure all of the pool
water is filtered correctly. In such cases the cell production percentage should be set quite low. Harsh local
conditions such as leaf litter, traffic pollution or windborne dust may also require different running times, in
which case seek advice from your pool shop. Always run the chlorinator when swimming in the pool.
SHOCK TREATMENT
Shock treatment refers to the addition of an oxidising chemical to the pool in order to destroy the
contaminants that have bonded with the free chlorine, known as combined chlorine or chloramines.
Chloramines are what produce a strong “chlorine smell” and can cause irritation to the skin and eyes of
bathers.
A proven way to eliminate chloramines is super chlorination. This involves raising the free chlorine level
in your pool to ten times the combined chlorine level. For example, if the water has 0.5 ppm of combined
chlorine, you will need to add 5 ppm of free chlorine to destroy all of the combined chlorine. To do this, either
run the chlorinator for an extended period at a cell production of 100% or add either liquid or granulated
chlorine to your pool.
CHLORINE TYPES
Many chlorinator manufacturers calibrate their units to compare with 65% granulated chlorine, making it
necessary to adjust their readings to a lower level in order to determine true chlorine production. The cell
production percentage on your chlorinator is expressed as 100% chlorine. The comparison table below
shows the performance of your chlorinator with reference to the available types of chlorine used to sanitise
pools.
ProMatic 24
Maximum Production of 100% Cl 24g/h (0.0529 lbs)
Equivalent in 65% Granulated Cl 37g/h (0.0815 lbs)
Equivalent in Liquid NaOCl (12%) 200mL/h (0.2113 quarts/h)
100% Cl Produced over 8 Hours 192g (0.423 lbs)
Equivalent in 65% Granulated Cl 296g (0.652 lbs)
Equivalent in Liquid NaOCl (12%) 1600mL (1.690 quarts)