Light-dependent reaction. In the light-dependent reaction, light energy from the sun is used to split water (photolysis). which has been taken in by plants. Water, when broken, makes oxygen, hydrogen, and electrons. These electrons move through structures in chloroplasts and by chemiosmosis, make ATP.
Usually, we tell pool owners that between 8 and 12 hours is a good rule of thumb. Many people want to run their pool filter system only at night in order save on electricity during off-peak hours. That's not a bad idea, but it's not the best.
Question is on how long should a commercial pool run for cond of 24 units . People use the pool every day there is sun .the bulk of People are in and out of the pool from 10am to 6:00 pm . I would say a average is 10 people in and out multipal time daily . Mostly sunning and they use the pool to cool off .