Hello! I opened my pool today and my pool filter is reading 0 psi pressure. It is a Hayward sand filter on a 20,000 gallon in ground vinyl pool. All jets are working at full pressure, it seems. skimmer has good suction, nothing else seems out of whack. Emptying skimmer and pump basket regularly. Is it most likely the gauge is faulty? Or is there anything else I should check?
Thanks!
Thanks!