The pump was running at 2500 RPM (Intelliflo VS) but wasn't cleaning well. Bumped up to 2800RPM and see the filter psi at 20 and the PV3 system saying 7 psi ? Why such a difference. IS that normal? I just cleaned the filters a couple weeks ago (three weeks after filling pool). Lots of plaster in there (the filters weighed 75+ lbs).
The specs call for 60GPM @ 80HD ?