luvmydogsExplorerDec 29, 2017SENSORSIn 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...Show More
enblethenNomadDec 29, 2017I would not use Drano. It could damage the seals.I buy the cheap dish soap from places like Dollar Tree. I use about a cup.
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