I have a ClearFlo 48 sq. ft. DE Filter on a 13000 gallon in ground pool. I am pretty good about keeping the DE grids cleaned and have replaced several of them due to age, holes.
Here is what I notice: If I neglect the pool for a while and there is a layer of dirt on the pool floor, I then stir up the water and begin to filter it. Even if I have broken down the filter completely and am starting with fresh DE, I notice that my PSI will go from 10 to 30 PSI in a day or 2. And then I will have to immediatly backwash again.
Is this normal? I would think that that the filter would have more longevity than this after a refresh.