Scott,
I'm not sure that was the best fix. The tank flush has a backflow preventer valve that probably is what failed. It is a vacuum break type and yes - it is required - but it is also critical. It prevents backwash from the blank tank from entering your flush hose as well as the CG potable water system.
In Fact, if your modification was done low enough, the black tank will actually start syphoning out through the tank flush inlet in your panel and flood your basement with crap - so to speak.
There are no valves other than the one you just bypassed that will prevent this!!! If you have the older Montana, it will discharge outside on the ground.
The valve has to be serviceable, so somewhere there should be access to it. I would swiftly pursue repair
.
Hybrid Mode
