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.
How long should i run my pump. You should run your pool long enough to circulate the entire pool volume once per day as long as the water temp is 70 or above. You can cut back to 4-6 hrs if the temp is below that. Very hard for algae to grow below that temp.Example 15000gal pool = avg pump moves 50 -55 gals per min.