So I have struggled with this pool for the last couple years trying to get it clean and throwing all kinds of chemicals at it. This year I purchased a slime bag. And noticed that inside the slime bag I was getting large pieces of plant garbage. So how is this stuff getting all the way through my sand filter? I even had my kids send some dirt/plant matter into the skimmer, and put a sock on the return. After only 90 seconds I can see pieces that they had sent down the skimmer.
I checked the multi port valve and from what I can tell it looks ok. It doesn't leak and there's no water coming out the backwash line. I've checked my sand and it looks good. How is this stuff getting through?
I'm about to purchase a new filter, but I don't know what's wrong with my current one.
Any suggestions please? Any other tests I can do? Pictures you'd like to see?