bathroom smells while travelling
Just bought a 29 foot Itasca class c, an 03 e 450 chassis, the bathroom smells like sewer while travelling. The toilet holds water, the seal appears to be ok, any ideas?
Forum Discussion
36guy wrote:
Well, was under the sink, there is no valve there, just the standard setup a residential sink has, a p trap, and nothing else.
It's not the shower, the bathroom is separate, the shower is in the hall and does not smell.
I'm gonna try the next trip by putting the plug in the sink, trying to determine exactly where the odor is coming from. Roof vent is closed, toilet holds water, that only leaves the sink.
I had the seal between the toilet and the black tank flange go bad once. I had to take the toilet up and replace the seal.
I also had the black tank roof vent get stopped up once. It caused the AAV under the bathroom sink to rupture every time I emptied the black tank. I would replace the AAV and the smell would go away until I dumped, then would return. After replacing the AAV a few times, I unclogged the roof vent. Then, when I replaced the AAV I had no more problems.
And, all sink drains HAVE to have a vent of some kind between the sink trap and the tank. Otherwise the vacuum would ALWAYS pull the water out of the trap. Look under the sink again. If you don't have an AAV under there after the trap, it has to be vented through the roof after the trap.
An AAV will be on a PVC stub sticking up above the drain pipe that just ends.
Here is an image off of Google
