I have a large pool with 2 pentair 2072 DE filters. They are the kind with the bottom manifold. So I have been having DE in the swimming pool issues when I clean the filters. There are no holes in the grids. The Vent tube is screened, yet the stuff still keeps pouring in.
Very tired of this problem and cannot figure it out. I really do not want to have to take the valves apart and if I do I'd like to make sure I fix the right one. If you think it is the valves, any input on taking them apart would be appericiated. Send me your input or further questions.