Sewer Smell
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...
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Sewer smell had dissipated as coach was left in covered shop overnight with windows open and drove 10 miles and no smell. Did find a pop vent valve associated with washer so will replace that. All p traps are full. Used a recommended solution of fabric softner and bleach to put in tanks while driving to clean out. thsnk for all quick responses hope I can help the same in future.
