You probably have a piece of toity paper hanging on a sensor. 3 things to do:
1. Use more water when you flush.
2. Use the black tank flush to fill and empty till clear.
3. When you pull out, add several gall OK ns to the black tank and some Dawn. The agitation of rolling down the road will help clean the sides.
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Chip Bruce, RPh
Kansas City, MO
2016 Impact 312
2017 Silverado 3500HD SRW
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