I have a 39,000 pool that is 12 years old. The filter system is looking very tired but is still holding up. Currently I have a 1 HP primary pump, 3/4 HP aux pump, and looks like about a 250 lb. Hayward Sand Filter with American Products Multiport on top of the sand filter running thru 1 1/2" supply lines at 19 psi.
I know my Multiport is shot (leaks badly even after replacing spyder), my chlorinator is leaking and worthless, and my 3 port valve is shot (handle cracked off). My question is, how can I tell if my sand filter needs replacement ??
I am considering replacing the filter and multiport, what do you think of Pentair?? Which filter do you recommend??