I have a jacuzzi filter for about three years (bought it used) and for the first three years it would run at about 15 to 18 psi. When the pressure would build to 22 to 25 I would backwash. This build-up used to take a few weeks at least. Now I backwash at 22, it will drop to about 18 at the lowest but will build back up to 22 to 25 in about two to three days. Is this a problem, is there a solution?
Thanks in advance