The last two years I have noticed that the return jet closest to the pump always seems to have fine dirt accumulate under it. Probably about a foot or two away from the wall, obviously coming out of the return jet. I pull my DE screens out every fall at closing and spray them off good and then store them inside to dry. I have added the proper amount of DE to the filter (per the filter specs) and the pressure is kept within proper parameters.
I say I noticed it over the last two years but feel its probably been happening longer because I used to have a Polaris that ran every day (on a timer). When the pump went bad, I switched to a robot that I put in when it looks dirty. But that one area ALWAYS seems to have debris accumulation in it. Is this normal or is there something I need to check/do in order to get this resolved.
As always, I appreciate any help you guys give me.