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-   -   Bounder: Black tank venting inside (http://www.irv2.com/forums/f107/black-tank-venting-inside-468610.html)

Triple H 11-10-2019 10:07 PM

Black tank venting inside
 
2019 Bounder 35K. I have sewer smell and air coming out of the wall that holds the pocket door separating the living area to the bedroom. My fear is the black tank vent pipe has separated from the tank and is venting inside instead of out through the roof. I can’t even find the black tank. Does anyone know where it is or any other reason it would be venting inside?

Thanks.

cavie 11-10-2019 10:12 PM

Quote:

Originally Posted by Triple H (Post 5033293)
2019 Bounder 35K. I have sewer smell and air coming out of the wall that holds the pocket door separating the living area to the bedroom. My fear is the black tank vent pipe has separated from the tank and is venting inside instead of out through the roof. I can’t even find the black tank. Does anyone know where it is or any other reason it would be venting inside?

Thanks.

air admittance valve under the bathroom sink.
https://www.amazon.com/Oatey-39012-A...07402370&psc=1

Triple H 11-10-2019 10:53 PM

Quote:

Originally Posted by cavie (Post 5033296)
air admittance valve under the bathroom sink.
https://www.amazon.com/Oatey-39012-A...07402370&psc=1

There is no smell coming from the cabinet. If it was an air admittance valve wouldn’t the smell be under the sink?

Rodzent 11-10-2019 10:55 PM

Does your rig have a black tank flush system. Hose connection in panel somewhere near your fresh water connection. There is a vacuum breaker in the line between the outside connection and the black tank itself. The breaker usually runs up into a wall about two or 3 feet high so that it works correctly. These breakers are known to fail. I had a 2006 Fleetwood excursion. The vacuum breaker failed. I didn’t get a smell but did have a water leak inside a wall when using the black tank flush. Found the breaker In the wall behind the mirror. Others have them under the sink in the bathroom

Tajfish 11-11-2019 12:16 AM

My Bounder is a 2007 dp so probably not the same but You can contact Fleetwood with your vin number and they will email all your mechanical drawings which will show you where the tanks and drain plumbing is good luck

Rocky Larson 11-11-2019 07:57 PM

If the vent has "dropped" into or separated from the black tank you may see a change from the roof at the venturi attachment

lynch763 11-14-2019 07:35 AM

Do you have the smell all the time? Or intermittently?

We get a smell intermittently and I believe it occurs only when the black tank is near full with the right wind direction. We leave the half-bath roof vent open and the vent of the black tank is right near the roof vent.

cavie 11-14-2019 07:47 AM

Quote:

Originally Posted by Triple H (Post 5033333)
There is no smell coming from the cabinet. If it was an air admittance valve wouldn’t the smell be under the sink?

YEP.

nomoreosama 11-16-2019 06:05 PM

I have a 2019 Southwind 35K. Had similar issue! My vent pipe was never connected to the tank! The vent pipe is in the area of the interior wall near the bedroom slide out... Look above the LP tank by removing the cover near the vacuum-flush and look for the connection. I simply used a rubber type coupling and two hose clamps. Hope this helps.

wildtoad 11-16-2019 06:53 PM

In my Newmar Baystar Sport the AAV for the gray tank is under the bathroom sink. The black tank flush back flow device is also in the bathroom cabinet but hidden by some drawers. Took me forever and a lot of DW “encouragement” to find it. As mentioned they go bad but also if you somehow introduce debris from the hose it can get stuck in the valve and not form a good deal allowing odors into the bath area.


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