Im trying to help a friend with his pool. He closed very late last year and there are millions of leaves and debris. going through the regular process with bleach for over 5 days now.
The issue is that literally 40 minutes after a backwash, the pressure is through the roof again and the pool needs another backwash. I dont think this is normal behavior from my experience. within 5 minutes there is air in the pump basket. and as time goes on there is more and more air until its barely working and the returns have nothing coming out.
I took the filter apart with him, cleaned it out, put in new DE, and same issue. The water in the 'viewer' doesnt even seem dirty after those 40 minutes. Its clear. It doesnt seem like its needing the backwash other than the horrible pressure.
If we set the pool to recirc, there is no air in the pump basket and everything runs great. Full power and perfect pressure.
Can anyone point me in the right direction on what we should look for next?
The lid looks very tight but I can adjust and lube the ring. Maybe lube the filter ring as well. But Im hesitant to think that would be the cause of complete system failure every 40 minutes like clockwork.
Thanks a million in advance.