I need to replace the sand filter I have because of a crack in the multi port. When Pool people installed last year I was kinda wondering why they put A LOT of silicone on one of the fittings in the multiport. I took the multiport off and disconnected the fitting to change the sand and found out why. They cracked the multiport where the fitting goes in. I think buying the multiport is almost comparable to switching to a filter in $$.
The pool is 12x24, 10K gallon, 1 hp waterway 2 speed. what would be the minimum and ideal SF size for a cartridge filter? I see everything from 50 to a whole lot.