The ideal pH-value for successful pool water treatment is between 7.0 and 7.4. This range takes into account the well-being of the persons swimming, the life time of swimming pool materials as well as the optimum effect of water treatment products. |
In swimming pools, there are favourable conditions for various microorganisms (bacteria, fungi, algae) to live. Only a small portion of the bacteria and fungi cause illnesses which might be a risk for the persons swimming. However, even they can multiply quickly leading to slimy coatings and water turbidity. |
The algae can proliferate very rapidly inside the glass of the swimming pool. These give a greenish coloration to the water, do that the walls become slippery and can lodge in the coating. The prevention is the most effective and more economic solution against the algae. |
A sand filter can not hold back super finely distributed impurities, what are known as colloidal impurities. This can lead to a milky turbidity of the water. However, with the aid of flocculation, it is possible to make these suspended particles filterable. |