I must admit that this advice is quite shocking to me. I've owned 5 homes with in ground pools and would take a cartridge filter 100 out of 100 times (I use the Sta-Rite 3 System). I've never used a sand filter so can't comment on how well they work. I have used many DE filters and find them to be a MAJOR pain! Hell, some of them are almost impossible to get back together (you need to line the "fingers" up properly). I actually just removed a perfectly functioning DE filter from my pool in favor of the Sta-Rite 3 Cartridge. I can't imagine ANY filter on the planet is easier to maintain than this thing is.
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