Small particles of dirt settle in the water and seem impossible to remove with a vacuum cleaner, for example. It may then be necessary to add a flocculant, which collects small suspended particles in larger units, which can then be better captured by the pool's sand filter or by a bottom suction device.

In pools without a sand filter, the impurities settle on the bottom instead.

Dosage:
First adjust the pH to 7.2. Add 50-100 ml of flocculant to 10,000 liters of water.

Paper filter: The pump should be turned off while the flocculant is distributed evenly around the pool, e.g. with a watering can with a spreader. After 1-2 days, the floating particles have settled to the bottom. Now clean the pool bottom and start the filter pump again. Clean/replace the filter.

Sand filter: Add to the pool skimmer while the pump is running. After 2-3 days, backwash the sand filter. If necessary, repeat the treatment.

NOTE: Flocculants should not be used with filter systems that use Filterballs