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Old 05-23-2011, 05:11 PM   #1
DIAPERMAN
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Default Re: Sewer smell while driving

Thanks I saw those
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Old 05-23-2011, 11:10 PM   #2
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Default Re: Sewer smell while driving

Not sure what make coach you have, but I have had the same issue in my last two motorhomes. I tracked the problem down in both of them to the in house syphon style vent the manufactures use on the drain lines for the sink in the cooking area. This style vent is spring loaded and opens when water goes down the waste line. The smell is from the vent not closing completely allowing odor from the gray tank to come back up and out of vent. The vent is normally located in the cabinet under the sink. The vent is easly replaced and should thread off, no cutting or glueing involved.
Pope
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Old 05-24-2011, 01:41 AM   #3
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Default Re: Sewer smell while driving

I couldn't resist.... Have you checked to see if your Diaper is full?
:~)
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Old 05-24-2011, 07:59 AM   #4
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Talking Re: Sewer smell while driving

I cant believe someone had not came up with a diaper jab That was funny
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Old 05-24-2011, 09:02 AM   #5
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Default Re: Sewer smell while driving

i am having the same issue. When I flush the toilet when the air conditioner is running I get a foul smell. Seems to be only when the A/C is on.
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Old 05-24-2011, 10:29 AM   #6
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Default Re: Sewer smell while driving

Do you also have a shower?? I you do it could be that the trap in the shower is draining when you you flush I had that problem in my Prevost a couple large glasses of fresh water in the shower drain did wonders, it would also happen when the holding tanks were drained. Also it does not hurt to put fresh water in any trap after draing holding tanks
Just a thought
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i am having the same issue. When I flush the toilet when the air conditioner is running I get a foul smell. Seems to be only when the A/C is on.

Last edited by BlueOval Ralph; 05-24-2011 at 10:32 AM.
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Old 05-24-2011, 12:45 PM   #7
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Default Re: Sewer smell while driving

Thanks Blue Oval Ralph. That makes good sense. I will try that.
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Old 05-25-2011, 01:52 AM   #8
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Talking Re: Sewer smell while driving

Quote:
Originally Posted by Mike Pearson View Post
i am having the same issue. When I flush the toilet when the air conditioner is running I get a foul smell. Seems to be only when the A/C is on.
Hey Mike, quit pooping in the A/C unit! Jim
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Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess)
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1982 NHRA D2 West Palm Beach LDRS SS Runner Up
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Old 05-25-2011, 08:07 AM   #9
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Default Re: Sewer smell while driving

1/2 inch line comes out of the side top of the black tank and runs up in wall the line that goes out of valve I dont know where it goes smell comes up front when driving ,but it is in bath area also any ideas
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