The water of the swimming pool must receive two types of treatments. One bacteriological since a water with clear and clean aspect also can contain pathogenic bacteria; the most effective filtration will not eliminate all the risks. The permanent disinfection of the water is necessary and has two purposes:

- To destroy the virus, bacteria, parasites, etc. and to eliminate the contamination risks.

- To prevent the growth of seaweed and to maintain clean it.

In order to make this type of treatment we will use disinfectants. These can be classified by two great groups Chlorinated or Not-chlorinated

On the other hand we will have to make treatment in order to correct aspects of stability of the water that of being solved cannot decrease the quality and being causes of numerous problems.