AquaHot fumes in cabin and basement
New to me 2003 Monaco Sig, I occasionally get 'fumes' inside my coach, and often in my basement. 'Fumes' seem more like raw diesel than exhaust. I have read over many AH fume posts, and the solution is usually to seal any unsealed holes in the floor (under sink, under fridge, for example), or find and fix a fuel leak. Have not been able to find any wet spots or other evidence of a fuel leak in the AH enclosure. I have already found one area under the sink where plumbing passes to the lower bay that had been unsealed; one below the fridge as well. I user regular Great Stuff expanding foam to fill the first one. Eliminated fumes in the kitchen. About to fix the one under the fridge, and the following questions occurred to me:
AH users, does your AH or other basement areas 'smell' like anything, or no odor? Should I keep chasing a leak, or is this normal?
Is there a better product than Great Stuff to use? Monaco used a black product... Might be easier to remove in case I need to work those access areas in the future. The Great Stuff can be a challenge to remove...