Odd issue during black flush
Just looking for any thoughts here, I’m pretty befuddled.
It was just a typical breakdown at a full hookup site, and I was draining the black tank. Pulled black valve and the tank emptied fine. Connected the black flush line and turned on the water. Black valve was still open and I confirmed water was properly coming out, so everything seemed fine.
A few seconds later my wife leaned out and said that it smelled like sewage. I didn’t remember that ever happening during black flush, so I shut off the water. I confirmed she hadn’t stepped on the pedal and confirmed no visible leaks anywhere, so I went ahead and continued to flush. A couple minutes later my wife noticed a very small leak from under our bathroom faucet. At that point the black flush was running clear anyhow so I just fully stopped and went in to troubleshoot.
After removing every panel we could, I couldn’t find any water lines near the black flush line. What I could see was what I think is the vent pipe to the roof. So the only thing I can figure is that somehow the water maybe went up the vent pipe, but I don’t understand how that would have happened when it was draining just fine through the sewer hose. Also doesn’t really explain the smell, which my wife noted penetrates up the pantry too.
At this point i decide we just need to get it home, but I’m not even sure what to try next.
Any suggestions? This is a ‘25 Rockwood 2509s for what it’s worth.