I have a 2005 Mandalay 40B and have owned since 20,000 miles, has 34,000 now. It has always had a bit of a sewer smell when driving. I do not run with vents open, both tanks have been bleached but o...
All great suggestions ans it seems there are as many liquids to out in tanks as there are owners. The diluted fabric softner worked quite well and was even touted but my MH dealer but the real fix was replaceing all of the pop vents, event he one for the washer, which we do not use, but keep the trap filled. Nice to not smell for a change. Thanks for all responses. Off to the road..