I know the toilet is vented through the roof and how the system works. We never experienced this with our previous camper and only being the 3rd time out with this one I was thinking something might have came loose underneath since the camper was really contorted pulling into this site.
I poured a bucket of water in the toilet when I got home and flushed it and a couple seconds after the toilet was flushed I could smell it outside and the wind was blowing the other way so I am pretty sure its not the roof vent.
