Haven't seen any signs of leaks Been looking at older coaches and some of them are just musty smelling. Can these be cleaned up or is the smell so deep its there forever? Is it usually in rug...
Rent a Ozone Generator, plug it in and let it run for a couple of days. Repeat if necessary! I used one in a stinky van that I bought. It smelled like cat urine. The smell was gone in one day and never returned! Ozone will kill any smoke odors and the odor doesn't return!