I have a Pentair FNS DE filter and when I've pulled it apart without back back washing first the grids were coated completely.
Re: Sizing DE filter
I have a Pentair FNS DE filter and when I've pulled it apart without back back washing first the grids were coated completely.
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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