Overly "fine" cartridges clog up quickly especially when well water is used.
Use only sediment filters and not ones "that remove chlorine", etc...
The correct filters are expensive. The cheap ones from home stores clog up fast.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW