6000 gal vinyl Intex (Bestway) above-ground pool. Current pump is 1500gal/hr, 0.5hp pump. The sand filter is 10” across, 0.54ft2.
Right now the sand filter is small enough that I have to backwash at least twice a week (family of 5 — I can get maybe 2 days of all of us swimming in it before I...