I think I have this one figured out but looking for some validation. I noticed today that my pump is very bubbly in the window and the jets of the pool are not getting nearly the PSI I was expecting. I noticed the filter is showing around 33 PSI (high). Trees in the area have been dropping a lot of stuff in the pool this week. I cleaned pump and pool baskets and it did not make an impact. I am thinking that the problem is that I need to backwash and put new DE in filter to solve. Thoughts?