Originally Posted by wilderness503
Sorry I am so new to this. The vents on the roof (square that you crank open) were closed. The built-in fridge was actually removed and replaced with a small fridge/freezer combo. On the back of the trailer there is a hatch door that I opened up and it lead to the back of the fridge. The smell seemed to be committing from the bottom but I could not tell if it was the fridge or what was below it. Where would I find the vent stack? I have been trying to get my hands on the owners manual with no luck.
Owners manual will do you no good as they are vague and cover a lot of models with no real value.
Vent stack will be on top of camper and about 4 in. In diameter one might be plugged.
Try flushing tanks and do a search on (Geo method) on frf.