feet of head

Hi Everyone, First post, long time pool user but just inherited my first pool in 2022 when we moved into our current house. Had some questions that I'm hoping the experts here can answer for me. Q1) What should be the difference in pressure (relative) be when the sand filter valve is in the...

Hi, I have just installed an IGUI Waikiki 3,900 gallon pool. Pool plumbing consists of one skimmer and two return jets, connected by 2 inch piping. Please note the suction side is longer than the outlet side (60 feet compared to 40 feet). I connected an Intex 14 inch sand filter and an Intex...