First time poster... long time lurker.
I want to switch to a cartridge filter from my current sand filter this season for a couple of reasons. First, last year I switched to SWG and since backflushing, SWG and my very extensive landscaping are most likely not compatable (not to mention the loss of SW) and second, I think the pool company that opens and closes my pool each year must have damaged my Hayward sand filter last year when they put new sand in it... it kept intermitently spewing sand through the returns.
In addition to those reasons I also believe that my sand filter is undersized for my pool. Current setup is 20 x 40 rectangle with 8ft deep end, 1HP Hayward super-pump, 1-1/2 inch lines (I know bad recommendation from the pool supplier), Hayward Sand Filter (200 Lbs), Hayward H-400 heater, Compu Pool CPSC36 SWG, two skimmers - one on each side, Hayward Phantom cleaner and also Hayward Navigator cleaner
Anyway, I have done research on cartridge filters and they seem to be a good answer to my problem.
I have narrowed it down (I think) to 2 models. The first is the Hayward C3025 (325 capacity) and the other is the Pentair CCP320 (also 325 capacity). They are both around the same money.
First question - is one better than the other? Second question - I believe I have sized this correctly for my pump and pool... or did I?
Any other comments would be appreciated.