I have a Pentair 60inch FNS Plus DE filter, and this is the 2nd time this has happened. How is this happening? I turn the pressure valve when I start the pump to let the air out. Any ideas?
Seems like part of my pool startup procedure now is to buy a new one of these when I clean the grids.
Seems like part of my pool startup procedure now is to buy a new one of these when I clean the grids.