Gray and Black tank sensor issue

[Planecrazy05]

Hello everyone,

My wife and I have a fleetwood Bound 2010 35H and our black/gray sensors never show empty. Actually the black tank shows full and the gray flashes 2/3 to full even when the tanks are emptied.

I have tried the gauge cleaning solution and followed the directions. I have used the SAN-T cleaner for the black tank every time. I have also had the dealership clean the tanks out two different times ( we bought the RV used about 3 months ago).

I saw on youtube someone post a video of them having their tanks pressure washed out in Phoenix, but I can't seem to find anyone in the Portland area. Does anyone know if some in the Portland area has a pressure washing tank cleaning company?

I called a couple RV mechanics, but none of them knew of a company.

Thanks,

[beemerphile1]

Learn to ignore them and life will be much better. They never work correctly unless you want to spend the money on a better system that has the sensors outside the tank.

[enblethen]

The sensor virtually never get clean.
If you don't have them, installation of holding tank flush units will help.
Another thing that helps ours is putting a cup or two of liquid dishwashing soap into each of the tanks after dumping along with water.

[Lwiddis]

These gauges don’t work consistently. Clean them today, they’ll stop working next week.