I have owned my home for almost three years. This year I am trying to do the pool maintenance myself. I have a Hayward Pro Series Sand Filter & the rate is 20 GPM/FT2. For the past two years there has been sand in the sight glass. Now when I backwash I see debris such as bits of leaves, sand, and other things.
I have not changed the sand on this filter, and I do not know if the sand was ever changed before I bought the house.
I brushed, vacuumed, and backwashed today. Should this be of concern to me?