2018 Imagine 2800bh sewer gas odor

[Zymurgist]

Had our unit out last weekend and had no issues with odor this time. The only thing we did differently... we collected the rinse water in the kitchen sink until we were finished with dishes and then drained. Thanks for all of the responses!

[Marymac79]

We have a 350 Momentum. We just had the same problem with the sewer smell in the bedroom. After reading the information on several posts on this site we went to Menards and replaced the AAV’s in the kitchen and bathroom. No more sewer smell. And before we did this we contacted two dealerships who had never heard of the problem!

[Buckskin]

We have Imagine 2250RK with rear kitchen. Our vent for kitchen grey tank is on outside back wall. It is black and oval in shape. Check to see if it is blocked by dirt dobber mud.

[wstcoaster07]

Out with our 2019 2800BH that's a few months old. Sewer/skunk smell is pretty bad in the bedroom and we thought it was coming from the bedroom 2nd ac (which was only used once so far when we bought it to test it). Realized the smell must be tied to the gray tank zero smell under the sink. Makes me think either the gray tank vent is cracked/lose at the connection and the smell is coming out of the wall or the smell is coming out of the vent on the roof and then coming down through the ac unit (not sure since it seems well sealed off).

Oh the fun... Haha

[Maximus216]

Battery issues will also cause a sewer smell.

[Steve&Mary]

We have a 350 Momentum. We just had the same problem with the sewer smell in the bedroom. After reading the information on several posts on this site we went to Menards and replaced the AAV’s in the kitchen and bathroom. No more sewer smell. And before we did this we contacted two dealerships who had never heard of the problem!

Can you please post a picture of the vent so I know what exactly what I am looking for? I will then upgrade mine to. Thanks Steve

[tvromero]

Do you only have the smell when you are hooked up? On my Reflection, we have a rear bathroom and when I leave the rear dump tube connected and grey tank open to drain I eventually get a sewer smell into the trailer. Maybe I am missing some venting but the cause for me was RV parks sewer smell coming into trailer from open grey value. This same problem does not occur with the front, only the the rear. Once I closed the rear grey the smell would go away.

[sitruc1978]

I have the same problem with my 2018bh, the vent stack is close to the ceiling vents and coming in the trailer.




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[jw^2 family]

Can you please post a picture of the vent so I know what exactly what I am looking for? I will then upgrade mine to. Thanks Steve

@Steve&Mary,

Not so much of an upgrade as just a direct replacement. You shouldn't need to change out an air admittance valve unless it's gone bad. However, it's a great idea to have a replacement AAV on hand just in case, to keep a camping trip from being spoiled.

You can find pictures of some parts on the parts lookup section of the Grand Design website:

https://www.granddesignrv.com/owner-...s/detail/22141

[wstcoaster07]

I have the same problem with my 2018bh, the vent stack is close to the ceiling vents and coming in the trailer.




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Yeah this is the only thing that made sense to me except the fact that we have the 2nd ac unit which should be sealed decently well enough from the outside right? I mean it pulls air from I side the trailer, conditions it across the coils and returns it. Just the ammou t of smell coming in didn't seem like it was seeping in. If it is, then I would imagine if get water leaks as well.