On my 2015 27fb I have the same strong sewer smell in the closet. (no smell under the closet) This happens when we travel down the hwy with sewer in the tanks. It is especially bad when the fantastic fans covers are open for cabin ventilation in hot weather. The dealer has looked at it twice and still have the problem.... may have to make the 1000 mile trek to Jackson Center. I don't think its from the grey tank... thinking it from the black tank. Next test is to drain just the grey tank and tow to check for smell. Any ideas? I am thinking that dznf0g may have a good idea.
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"Ferdara" Mark and Michael Broussard-Hubbard
Aluminum pulling Aluminum 2018 F-150 4X4 Platinum, 3.5L V-6, 10 speed trans, 6.5 bed, Max Tow 3.55 Elec Locking axle, Roadmaster Active Suspension ~ 2015 Airstream Custom Ordered 27fb International Serenity - Lafayette Louisiana
WBCCI 11100
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