FC 5.5 CC <.5 PH 7.5 TA 100 CYA 40
Hi! We are on our first season with a pool that was built late last summer. Since we opened, we have ran the pump 24/7 with no problems. After studying this website, we decided to only run the pump about 12 hours per day. We have a hayward pump with 4 filters. We have tried several times to shut the pump off for several hours, but when we turn it back on, the pressure raises 6 - 8 psi and does not lower. If we do not shut the pump off, we can go up to 2 weeks without cleaning the filters and the pressure does not raise. Our pool is very clean (we vacuum weekly), so we cannot understand why the pressure increases each time we turn pump off. We would appreciate your help, since it would be nice to run the pump less and lower our utility bills.