In a 23 ft travel trailer for about 6 months and the black water and grey water sensors are stuck at 2/3 for the last month. We tried some of the granular stuff from camping world but didnt do a thing...
Thank you all or your info, got a good laugh from most and found out that the general consensus is, sensors dont work. lol lol I will try to Liquid Drano and the dish soap, guessing Dawn might be best. Sure wish they wouldt make these things so dang cheap!!! Thank you all.