Operating instructions

E- Series Chlorinator M20 CSD & M25 CSD V05_10
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6.2 ADJUSTING PH SET POINT
Continue through the SET menu to change the pH balance of your pool.
As a guide the pH in your pool should be set between 7.2 and 7.8. This will be determined by the type of pool you
have, (Concrete, Fibreglass, Vinyl Liner) and you should rely on your pool builder or pool professional to
recommend the correct pH Set Point. Use the up and down arrows to set your pH value.
Once the pH value is set your LCD screen will return to the operating information screen which will cycle through
the current status of the chlorinator, the chlorine output setting (between 0 and 8) and the pH set point.
7.0 GENERAL OPERATION/POOL CHEMISTRY
7.1 Setting the Right Chlorine Output and Filtration Time
Your E Series CSD Chlorinator must be run every day to ensure that your pool is correctly sanitised. As the sun
dissipates chlorine, running times are higher in the summer compared to the winter. Astral Pool recommend that
you initially run you chlorinator at maximum output on level 8.
Summer
You should set your Chlorinator to operate for 8 to 10 hours per day. Ideally, run it for 4-5 hours in the morning
(say 8-12pm) and 4-5 hours in the evening (say 6.00-11pm).
In extremely hot weather it may be necessary to extend the running time if you find that the free chlorine level is
too low.
Winter
You should set your Chlorinator to operate for 6 to 8 hours per day. Again, running it in the morning and evening is
preferable. A lower chlorine output level may be selected.
Checking Chlorine Level.
Ideally, check your Chlorine level after the morning operating period. The free chlorine residual level should be
somewhere between 1 and 3 parts per million. Increase or decrease the output of the Chlorinator to get the right
residual chlorine level. It may also be necessary to adjust the operating period if you are running at minimum or
maximum output.
7.2 Stabiliser
Sunlight rapidly dissipates the amount of free chlorine in your pool. Chlorine stabiliser greatly reduces this effect.
Without stabiliser, you may need to run your Chlorinator and filtration system up to 16 hours per day longer!!!
Keep the Stabiliser reading between 30 and 60ppm.
7.3 pH Level
You should keep you pH level between 7.0 and 7.4 for fibreglass pools and 7.2 to 7.8 for other pools.
7.4 Total Alkalinity
The ideal range is between 80 and 120 ppm.