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...
Forum Discussion
You could buy/rent a flexible inspection camera and put in the tank through the flush valve in the toilet with the water turned off and take a look inside the tank to see what you are dealing with. Also look for crud buildup on the sensors in the tank level indicators.
