Hi,

The filter most people recommend on this forum is the kind they have!!

I would tell you the virtues of a sand filter....Why?....because I've got one and have never owned the other two (DE and cartridge)

I will say that sand does seem to be the most trouble-free type. That said, I'll let others chime in to tell you what's good about theirs.

I think if there was a really definitive answer, the industry would provide that type overwhelmingly.....they don't....it seems to be about an even split.

Dave S.