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Gray tank smell in cabin


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We just finished up a 4 week trip and during the last few days we have a horrible gray tank smell in the trailer after a travel day.   The first time I noticed it I verified the valve was closed and before the next travel day I made sure there was water in all the traps (both sinks and shower). Happened again today on or last leg home.  Tank was empty,   valve was  closed (verified under the front seat).  Anyone have this issue or ideas before I start tearing into things?

John

John and Kim

2021 GMC Sierra 2500 AT4 6.6L Duramax 11350 GVWR  3048lb Payload

2021 Oliver Elite II.   Hull #887

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There are some ideas that may help you resolve your issue in this recent post. -

 

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2020 OLEII - Hull #634 aka-  “XPLOR”

TV 2021 F350 6.7 liter Diesel Lariat Ultimate Tremor 

Retro upgrades - Truma Aventa 13.5 AC, Alcan 5 leaf pack, Alcan HD shackles & HD wet bolts, 5200lb axles.

XPEL 10 mil PPF front both front corners, 30 lb LP tanks, Sea Biscuit Front Cargo Storage box.

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15 hours ago, Jps190 said:

Anyone have this issue or ideas before I start tearing into things?

Happy Campers RV Holding Tank additive eliminated gray tank odors for us. 

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Hull #1291

Central Idaho

2022 Elite II

Tow Vehicle:  2019 Tundra Double Cab 4x4, 5.7L with tow package

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Check under the back dinette seat and look at where the gray water pipe from the bathroom enters the gray tank.  Ours was not glued just a friction attachment.  Bumpy roads caused it to dislodge and not seal tightly.  I glued ours in.  Mike

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Texas Hill Country | 2016 Elite II #135 | 2020 Ram 2500 6.7L

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