Hi, I haven't done any cartridge filter cleaning since I moved into my current home with pool 15 months ago.
Today I noticed psi is 29 at speed #4. I have variable speed pump.
But, at speed #1 - psi is 2
at speed #2 - psi is 14
at speed #3 - psi is 18
at speed #4 - psi is 29.
Should I be worried. Verified that my gauge goes to zero when the pump is not running.
My current test numbers- FC - 7, PH - 7.4, TA - 90, CH - 625, CYA - 60