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I posted an earlier question about DE returning to my pool. Got no response so maybe I can get feedback on this. On a Pentair DE filter lower housing is the intake (bottom fitting) and the return (top fitting). The return has the 2" PVC pipe which goes up the side to the manifold. When I fill...

I have a Pentair FN60 DE filter and noticed DE on the bottom of pool and in my robot cleaner. I replaced the grids (they were pretty ugly) and after putting all back together and running about a week now I still get DE settled on bottom. Seems to be less but still coming out. I took it apart...