black tank overflow and smell in living space

I am going to disagree with you Grit. I'll add that I have had several enclosed snowmobile trailers, still have a 7x23 all aluminum enclosed, finished walls/ceiling. Just not a fair comparison, as our sled trailers have high grade marine plywood floors, and not much to keep water from draining out quickly. I also use a high quality oil base stain on my sled trailer floor. Many RV trailers do have particle board flooring, and carpet with foam pad, insulation in walls. This trailer was soaked for a long period with waste water, not something most will want for future use.

Jerry