I purchased a used house with a pool about 6 months ago. After 3 months as pool owner, I saw the psi from my filter go up to @16lbs and decided to replaced all 4 of my cartridge filters with these from amazon:
Amazon.com : PACK of 4 Hayward CX570XRE, Star Clear/Swim Clear C3000 C3020 ALL AMERICAN Cartridges, Unicel C-7477, Pleatco PA75SV, Aladdin 17509, Filbur FC1260, StaRite PRC75, OEM 252000175S Swimming Pool Filter Cartridges : Patio, Lawn Garden
It's was running at 7-8psi new and water flow was strong. After a month it raised back up to 15psi. I took it out and cleaned it. Went back down to 10lbs.
I cleaned it again 2 days ago and it drastically went from 9lbs to 17 lbs, hence my water is not being filtered correctly because water flow was weak. Why is the pressure increasing so fast and rapidly. Visual inspection of the filter doesn't really look that bad. (I used Hayward brand lube around the rubber ring) Is it possible that I purchase bad/cheap cartridge filter? Could it be because I didn't buy the 'Name Brand' filters? Filters supposed to last for years right? Or am I not cleaning it properly? I'm just spraying it down with a water hose. But if this is the case, readings wouldn't be low after cleaning.
Took water test at Leslies' and TA is a bit low at 60 ant Calcium Hardness at 200, but I doubt this would affect the filter psi readings.
Please advise. Thanks in advance.