I have a 24' round semi-ig pool that has been dug out. The center ring at depth of 5' and the outer ring is 4'd & 3'w.
I calculate its roughly 15000-16000 gals.
The existing pump only has a plate on it that states it is 1 hp.
When I filled a 5 gallon bucket from the pump it took 7 sec to top off.
I think this corresponds to 42 gpm.
What size cartridge filter should I get for this size pool with this size pump?