newbie here.....filter is toast.....which filter should we get?

[cathicool]

so now the multiport has to be replaced as well if I do DE- (for an additional $200)! my multiport only is for 1.5" piping as is all the pool piping. the new filter (DE or cartridge) and new tristar pump are both 2" piping. the pool company said they sell 90% cartridge, 10% DE filters and the cartridge filters today are excellent.

ugh....my head is spinning.

[mas985]

I am a big cartridge advocate but for your location and because you close the pool in winter, a cartridge may not be your best choice. With a cartridge, opening can be a pain unless you have a filter bypass and a way to vacuum to waste. Otherwise, forget it.