High Pressure
Hello, my DE filter typically shows about 11 PSI after a back wash. I back wash when it reaches 18PSI..
At this point after a backwash it will read about 11PSI but then spike up to 20PSI within a couple days.
I've pulled the filter apart and cleaned the grids but that did not have any impact on the situation.
Is there other areas I need to look at?
14'x31' kidney 21K gal IG plaster pool; SWCG (Saline Generating System's SGS Breeze); Pentair FNS Plus 48 DE DE filter; Whisperflow 1 HP pump; 8 hours hrs; kit purchased from Ben; utility water; summer: none; winter: none; PF:5.7
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