Did some reading here and then did some math. Hopefully I have enough info to size a cartridge filter.
The pool:
14x28 foot 6 foot at deep end. Approx 12,000 gals.
I skimmer
2 main drains (split drains)
Avg head is 55ft
Pump 1hp pentair superflo
all lines are 2 inch
Aqua rite salt-chlorine...