Filter Size

DAB942

Gold Supporter
Nov 13, 2017
497
Space Coast, FL
I've read threads on filter size and there seems to be no such thing as too big. However, I don't want to overspend for the sake of size. I have a 150 cartridge filter. Is that OK for my size pool? I all but positive mine is lacking a solid seal. It might be time to replace.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
33,321
Laughlin, NV
You live in Florida, for some reason every pool there has a tiny filter.

You should have a minimum of 300 sf or preferably a 400+ SF cartridge filter. Goal is to clean it once or at most twice per year.
 

DAB942

Gold Supporter
Nov 13, 2017
497
Space Coast, FL
Sounds good - thanks. We clean this at least once a month and sometimes more often. However, that has changed with the robot getting the sand, etc of the pool floor.
 

DAB942

Gold Supporter
Nov 13, 2017
497
Space Coast, FL
You live in Florida, for some reason every pool there has a tiny filter.

You should have a minimum of 300 sf or preferably a 400+ SF cartridge filter. Goal is to clean it once or at most twice per year.
Would switching to a sand filter be better? If so, what size is recommended?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
33,321
Laughlin, NV
Sand filters are easy. They do take water to clean. And a place for that water (yours would be salt water) to go. You would be needing to add salt, CYA, etc to counterbalance the loss when you backwash.

A 24" sand filter should work for your pool volume. You can, of course, go larger if you like.