So, visiting mother and sister in north Florida ...they have small gunite pool with pretty simple system - single pump for filter system with Hayward 1005 Navigator. I had no previous experience with it and they didn't have much knowlegdge of operations.
Navigator was getting stuck on the main drain intake covers ...played around with the valve openings for awhile. Did some reading on line. Several discussions but nothing clear.
Pressure was running at 25 psi ... Asked about back washing interval etc ... Got a "sorta weekly" ... pool is 4 years old ...asked about cleaning the filter intervals ...was told "they said I shouldn't do that." So, seemed like the right thing to do
Pulled canister apart and found ugly green paper filters ...washed them off with hose and got lots of gunk ...cleaned out canister ...put back together. Got 10 psi, Navigator hauls butt now and no sticking on the drains.
What is the real story on the paper filters? These say 10 micron ...how should they be cleaned and how often backflushed?