Hello first time poster long time lurker.
Thanks to this site I've been able to turn my swamp into a nice blue pool. In my battle with my pool I have come across a issue, my PSI is running way to high and I am weak suction through my skimmer. When I first ran into this problem I cleared the skimmer line the plumber hose attachment, soaked the cartridges in dish soap soap over night and re-installed them with a 10 psi change from 30 to 20psi.
So I decided to buy a new set of cartridges which turned out great! They ran between 8 and 10 psi when first installed. Then after a day of running the filter for about 12 hours the psi was back up to 20. Seeing the 10psi change I decided to clean the cartridges. After cleaning them (hosed them of with spray nozzle) there was no change in psi. After vacuuming all the dead algae from the bottom of my pool the PSI increased to 28psi. I again cleaned them and the were filthy from the algae but after cleaning them back to bright white The psi still reads 28psi.
I noticed when I first installed the new cartridges the water was flowing like it should to the skimmer and the skimmer basket at the pump was filled to the top with water. Now at 28psi the skimmer barely pulls water with any kind of current and the skimmer basket at the pump is not filled to the top with water... I am lost at what to do I thought the new cartridges were the answer.
Pool stats are as follows:
Gunite in-ground pool
25k gallons of water? rough estimate
Pool was built in 1996
Original Jandy CL460 Cartridge filter
Type of pump unknown previous owner said it was only a couple of years old.