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Posts Tagged ‘pool surface’

Swimming pool Problems / Cause / Solutions

It is very difficult to make one definite diagnosis when faced with symptoms of swimming pool problems about the water. You should use all the evidence when considering what to do (e.g. test results) and go with the one you think is most likely.

swimming pool problems

The water’s pH is a measure of its total acid-alkalinity balance — the relative proportion of acids and alkalis in the water. Simply put, water that is either too acidic or too alkaline will cause undesirable chemical reactions.

If the water is too acidic, it will corrode metal equipment, cause etching on the surface materials, and cause skin irritation. If the water is too alkaline, it can cause scaling on the pool surface, and plumbing equipment, and can cloud the water. Additionally, both high acidity, and high alkalinity alters the effectiveness of the chlorine. The chlorine won’t destroy pathogens as well, if the water is too alkaline, and it will dissipate much more quickly if the water is too acidic. On the pH scale, zero indicates extreme acidity, 14 indicates extreme alkalinity, and 7 indicates a neutral state. The recommended pH-range for a swimming pool is between 7.2 and 7.8.

To raise or lower pH, acids or alkalis need to be added to the water. For example, adding sodium carbonate (soda ash) or sodium bicarbonate (baking soda) will generally raise the pH, and adding hydrochloric acid (approx. 30% solution) or sodium bisulphate will lower the pH. Read the rest of this entry »