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Open Roads Forum  >  Travel Trailers

 > Sewer gas odor

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duderjo

Florida

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Posted: 12/19/10 07:02am Link  |  Print  |  Notify Moderator

We get extreme sewer gas odor on days when there is no wind. Any ideas about the cause, or especially a cure?

popeyemth

owensboro ky

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Posted: 12/19/10 07:12am Link  |  Print  |  Notify Moderator

make sure all your "P" traps have water in them, then make sure your vacuum breaker in the bathroom is OK. the shower drain trap is usually the culprit.
good luck,mike


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5thwheeleroldman

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Posted: 12/19/10 07:28am Link  |  Print  |  Notify Moderator

Take your sewer drain hose and put a block of wood or something under it to create a "P" trap of sorts in it. I found years ago that sometimes the park sewer system "burps" gases back up your hose line. Have you seen those tall PVC pipes in some RV parks? They are supposed to dispose of those gases so they don't come up into your RV. But they don't work very well. Also, you may be smelling gases coming out of those standpipes on a quiet day.

sunkatcher

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Posted: 12/19/10 07:45am Link  |  Print  |  Notify Moderator

On those days with no wind. You may have your roof vents open and the vent pipe from your sewer will waff gases over the open vent allowing it to come into your rig.
Ron


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Jimehc

Taylorsville, Kentucky

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Posted: 12/19/10 07:46am Link  |  Print  |  Notify Moderator

You should have water or antifreeze in all your traps and you should have your dump valves closed..

The sinks have an air trap (vacuum air valve) under the cabinet - it should allow air to be pulled into the system when draining and close to prevent sewer gas from escaping into the trailer.

Check your air traps, your P traps, your dump valves and your roof vents, to determine where the sewer gas smell is coming from...

Even an open rooftop vent will allow sewer gas to enter from the rooftop sewer
stack vent..

popeyemth

owensboro ky

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Posted: 12/19/10 07:16am Link  |  Print  |  Notify Moderator

and check the obvious- make sure you keep some water in the toilet bowl

NanciL

Bakersville, NC, USA

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Posted: 12/20/10 04:38am Link  |  Print  |  Notify Moderator

Check your vent.
It could be blocked.

jack L


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skipnchar

Topeka or somewhere else

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Posted: 12/19/10 10:35am Link  |  Print  |  Notify Moderator

All of the above plus...make sure you're using plenty of water when flushing, never empty a black tank that's not nearly full, leave the black tank valve closed when not dumping and don't run your exhaust fan while flushing the toilet. The list is nearly endless of items that could cause your problem.


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xteacher

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Posted: 12/19/10 04:56pm Link  |  Print  |  Notify Moderator

Vulcaneer wrote:

Make sure you put a "trap dip" in your sewer hose. This prevents the sewer gas from coming back into the trailer, or out the roof vent. Especially, if you leave any of the drain valves open.


Since we keep our valves closed unless dumping, that shouldn't be a problem, right? We haven't noticed this problem in our new TT, but it was rough in our previous Passport.


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Vulcaneer

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Posted: 12/19/10 10:46am Link  |  Print  |  Notify Moderator

Make sure you put a "trap dip" in your sewer hose. This prevents the sewer gas from coming back into the trailer, or out the roof vent. Especially, if you leave any of the drain valves open.


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