The filter removes particles of dust and debris that are held in suspension in the water. For domestic pools during the bathing season it is necessary to filter (turn over) the contents of the pool at least once every day. As the water temperature rises and bathing increases, so does the necessity of running the filter for longer periods. Once the pool is up to temperature, it is certainly recommended that the filter be run for at least 10 hours every day.
It is strongly recommended that a time clock be fitted to the filter pump, which will ensure that this essential period of daily filtration becomes automated.
The pool water must always be crystal clear for safety reasons. If the water becomes dull or cloudy the pool chemistry must be adjusted, and then the filter should be run for 24 hours per day until sparkling clarity is regained.
A high wind or bathing party will introduce an excess of debris into the pool and the pool water can go cloudy overnight. Continuous filtration, possibly with the use of a flocculent*, will quickly restore the clarity of the pool.