Proper nozzle positioning
In pools with skimmer filtration system nozzles are usually placed opposite the skimmer at the upper part of the pool. In terms of water hydraulics, this location is not optimal, since ideal mixing of chemicals with the entire volume of water cannot take place. Especially in the summer months, during high pool usage, the formation of algae in some areas the pool may occur, even while maintaining the correct dosage of chemicals.
Rotate the nozzle to the bottom of the pool at about 45 °. Impurities on the surface of the will take a little longer to get to the Skimmer, but the overall cleanness of the pool will improve.