First off this is our first pool we just moved in 2 weeks ago. Pool looks ok just a little cloudy. I was reading about the filter pump in pool school. I went and checked my PSI while the pump is off and its reading 42 PSI? So I did a backwash and it went up to 52 PSI. By the way when we looked thru the sight window it was very yellow and had little bits of trash in it but then got clear after a minute or so. This was also out first time doing anything with the pump. The previous owner said the pump needs to run at least 8 hours a day. After reading I believe it should be 3 to 4 hours. Is there a way to get my PSI down or my gauge bad? How often should I backwash. Do I use any of the other settings on the pump?
Its a 17500 gallon pool.
Chlorine level is good but I need to raise the Ph level according to the pool store.