What's In The Box; How It Works - Pool Controls SWC Series User Manual

What's in the box?

•
SWC Series Power Supply, Cell and Cables
•
User Manual
•
40/50 Bushes and Mounting hardware (raw plugs, screws and paper template)

How it works:

A salt or mineral chlorinator works by putting a dc current through an electrolytic cell in a
flow of salted water. Salt/minerals is made up of sodium/magnesium and chloride ions.
Electrolysis of these salts produces chlorine gas, which dissolves almost instantly to form
free chlorine in the water. This free chlorine is a highly effective sanitiser for your pool.
Your Pool Controls Chlorinator constantly adds a dose of chlorine to the water over the
operating period of the system. The amount of chlorine added depends upon the cell
output and the running time.
Generally, a salt water or mineral pool is run for around 8 hours per day in summer and 2
to 4 hours per day in winter. The summer operating periods are usually in the early
morning and later evening. This allows a chlorine residual to build up for pool use during
the day.
The filter system should always be running when the pool is being used. If a pool
cover/blanket is used the chlorine demand will be greatly reduced. To avoid over-
chlorination use the Pool Cover Mode On/Off button. See pages 4, 12 and 16.
pH Control
When chlorine is added to water the pH always changes – this is because chlorine is not a
neutral chemical. The pH will slowly rise as chlorine is produced in a salt/mineral water
system. A rise in pH greatly reduces the effectiveness of the chlorine as a sanitiser, so it
is important to ensure that the pH remains in the correct range.
The pH of the water can be lowered by the addition of acid – and if your chlorinator has the
optional pH control, this can be done automatically. Pool Controls' pH Control System uses
a sophisticated algorithm to calculate how much chlorine has been produced by the cell,
and how much acid needs to be dosed to correct the resultant pH rise.
The algorithm can be adjusted if installed on a concrete/plaster pool. When adjustments
are made it should be in small values with the pool then monitored for effectiveness.
Note: while the algorithmic pH control is effective it does not measure pH.
pH measurement and checking must be done manually to make sure the pH is correct.
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