Update from Janice: So, still experimenting with things here. Yesterday the coach stayed stinch-free (except for a few minutes, which I'll explain later). The shower drain was covered, the sink drains were open, the plastic remained over the AAV. I washed a load of laundry in the RV last night, which brought the water level up to 2 bars on the sensors. No stinch last night or this morning. Since the black tank had four bars this morning, I filled the grey tank, then dumped both the black and grey tanks. No stinch. However, yesterday the vent fan came on mid-afternoon and I thought I was smelling a slight stinch. Turned off the fan, closed the vent, and whatever I was smelling went away. The same happened this afternoon. The unpleasant odor is very slight, but still there. Is that what would be happening if a roof vent were blocked? Maybe I'll get brave and remove the plastic covering from the AAV for tomorrow's experiment.
Bob, Janice & Guinness the Hound
2001 Monaco Executive (MuttRHome)
with Saturn Vue in tow