Forum Discussion
ScottG
Dec 05, 2017Nomad
There's likely a vent stack for the black tank nearby and concealed in a wall. Go up on the roof, remove its cap and see if the pipe has fallen down below the roof line.
The only other thing I can suggest is to get a small black light and shine it around. The bad stuff will glow.
The only other thing I can suggest is to get a small black light and shine it around. The bad stuff will glow.
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