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
schlep1967 wrote:
Go watch this video National RV Training academy. I would go with the liquify brand based on his test.
In your situation it may take a few treatments to get it cleaned out.
I was in your situation, but not full time used about 1/2 box of Rid-x added about 10 gallons of warm water and let it sit for a month.
In your case I would use a heavy dose of either of the two products listed. Go as long as you can before dumping, the use a wand to help clear out the residues.
