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How to Control Swimming Pool Pollution

Chlorine is still the most common means of controlling algae and bacterial growth, and an excess of debris will increase the amount of chlorine you need to keep the water clean and clear.

The answer is to skim off leaves and the clear the leaf trap and the pump and weir baskets regularly.

Whichever sanitizing system you use for you pool water, you must be sure to make sure that the pH, TA and residual chlorine in the water are at the correct levels. Generally the pH should be between 7.4 and 7.6 – never lower than 7.2 unless the pool is made of fiberglass or has a vinyl liner, in which case it should be between 6.8 and 7.2. The TA should be between 990 and 120 parts per million (ppm) for plastered pools and between 110 and 150 ppm if the pool is fiberglass or has a vinyl lining. The residual chlorine in the water should be kept between one and two ppm. If this falls too low you’re going to have to shock treat the water with chlorine. If you use a salt water chlorinator that converts salt into chlorine gas, make sure the salt levels are correct – especially in rainy weather when the levels are easily diluted.

If your water starts to go green after a downpour, take immediate action. It isn’t only the algae growth you need to worry about. Rain water can be slightly acidic, so test your pH after rain and adjust it if necessary.

We offer a full swimming pool cleaning service as well as weekly swimming pool maintenance packages.

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