I have a 20,000 gallon vinyl lined pool built in about 1965 and the filter system is pretty old.
I have been in the house about 4 years and have had little trouble until this year. I never have been able to get the pool water clean and algae free despite multiple shocks and "green to clean" treatments. It's August 3 and I have yet to get in the pool.
I have begun thinking the major issue is the filter system.
It is a fabric cartridge system from "Hi-Perm"
Anyway, it used to be that when my filter got to about 20 PSI I would have to change it and now it never gets past 10PSI - so I'm thinking either the inserts have some serious weak spots in them (there are 4 and I get the same result regardless of the one I use) or that there is a fundamental problem with the filter equipment itself.
I was just cleaning the pool and watever algae I suck up through the vacuum is coming out through the pump outlet and back into the pool
Anyone have any experience with these filters or should I just call it a day and get a new filter system. If new, what should I choose?
thanks in advance