I was thinking of changing my Sta-Rite HRPB30 sand filter (14years old) to a cartridge. The old filter has a filter area of
4.9ft2. Based on flow rate per hour the cartridge filter I had in mind was a 320ft2 Pentair Clean and Clear Plus. Would this be a good choice? Any suggestions regarding cartridge filters would be welcome. The pool is 10,500 gallons.