I replaced my filter last year. I had the same company open the pool. While opening the pool, they made a couple of mistakes which I figured out. Yesterday I vacuumed my pool (to waste) for the first time this year. I noticed small debris coming out of the returns. afterwards I backwashed the pool and DE started coming out of the return jets. This morning i had to vacuum again, I noticed small debris again. A little afraid to backwash.
my guess is there's a hole in the one of the filter panels or they were installed incorrectly. thoughts?