Black Tank only holds 1/2 to 1/3 of capacity
I recently (August) bought a used 2017 Catalina Coachman. Found out about a week later that the black tank valve had been left half open. Currently I am having to dump the tank about every two days (t...
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never trust the sensor there wrong from new not a good way to check your problem. pull the commode and get a good light . might pay to pull the tank and clean.
