Sewer smell while driving

DIAPERMAN · 05-23-2011, 10:08 AM

We get sewer smell while driving after using all weekend .dont get it going at all toilet has water in it vents closed also put water in sinks and covered shower drain

Keith 944 · 05-23-2011, 02:19 PM

i use to get that too, with side windows down, it would draw the smell forward, even with formaldehyde additive. whew, bad stuff. anyway, i bought a vent top, sorta looks like a wind vain. it attaches to the vent pipe and draws the oder out while driving. works pretty well. and def. worth the $5-15 bucks i paid for it! got mine at good old wal-mart...

DIAPERMAN · 05-23-2011, 05:11 PM

Thanks I saw those

sc180b · 05-23-2011, 11:10 PM

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

Adger Smith · 05-24-2011, 01:41 AM

I couldn't resist.... Have you checked to see if your Diaper is full?
:~)

DIAPERMAN · 05-24-2011, 07:59 AM

I cant believe someone had not came up with a diaper jab That was funny

Mike Pearson · 05-24-2011, 09:02 AM

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.

BlueOval Ralph · 05-24-2011, 10:29 AM

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

Quote:

Originally Posted by Mike Pearson

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.

Mike Pearson · 05-24-2011, 12:45 PM

Thanks Blue Oval Ralph. That makes good sense. I will try that.

DIAPERMAN · 05-24-2011, 06:21 PM

The shower is grey water and stool is black tank I think I found problem access panle in bathroom there is a releif valve that runs in the side top of black water tank the one-way valve on it is bad but Fleetwood dose not show on parts list

05-23-2011, 10:08 AM	#1
DIAPERMAN Senior Member Join Date: Apr 2007 Location: ILLINIOS Posts: 715 Likes: 2 Liked 21 Times in 6 Posts	Sewer smell while driving We get sewer smell while driving after using all weekend .dont get it going at all toilet has water in it vents closed also put water in sinks and covered shower drain

05-23-2011, 02:19 PM	#2
Keith 944 VIP Member Join Date: Feb 2006 Location: Dela-where? Posts: 2,116 Likes: 1,004 Liked 1,649 Times in 521 Posts	Re: Sewer smell while driving i use to get that too, with side windows down, it would draw the smell forward, even with formaldehyde additive. whew, bad stuff. anyway, i bought a vent top, sorta looks like a wind vain. it attaches to the vent pipe and draws the oder out while driving. works pretty well. and def. worth the $5-15 bucks i paid for it! got mine at good old wal-mart... __________________ KEITH MAYERS 2 X somebody many X nobody Last edited by Keith 944; 05-23-2011 at 06:18 PM.

05-23-2011, 05:11 PM	#3
DIAPERMAN Senior Member Join Date: Apr 2007 Location: ILLINIOS Posts: 715 Likes: 2 Liked 21 Times in 6 Posts	Re: Sewer smell while driving Thanks I saw those

05-23-2011, 11:10 PM	#4
sc180b Junior Member Join Date: Apr 2009 Posts: 12 Likes: 0 Liked 0 Times in 0 Posts	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

05-24-2011, 01:41 AM	#5
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,348 Likes: 434 Liked 676 Times in 260 Posts	Re: Sewer smell while driving I couldn't resist.... Have you checked to see if your Diaper is full? :~) __________________ Adger Smith (Former SS)

05-24-2011, 07:59 AM	#6
DIAPERMAN Senior Member Join Date: Apr 2007 Location: ILLINIOS Posts: 715 Likes: 2 Liked 21 Times in 6 Posts	Re: Sewer smell while driving I cant believe someone had not came up with a diaper jab That was funny

05-24-2011, 09:02 AM	#7
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,319 Likes: 546 Liked 1,629 Times in 502 Posts	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. __________________ Mike Pearson 2485 SS

05-24-2011, 12:45 PM	#9
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,319 Likes: 546 Liked 1,629 Times in 502 Posts	Re: Sewer smell while driving Thanks Blue Oval Ralph. That makes good sense. I will try that. __________________ Mike Pearson 2485 SS

05-24-2011, 06:21 PM	#10
DIAPERMAN Senior Member Join Date: Apr 2007 Location: ILLINIOS Posts: 715 Likes: 2 Liked 21 Times in 6 Posts	Re: Sewer smell while driving The shower is grey water and stool is black tank I think I found problem access panle in bathroom there is a releif valve that runs in the side top of black water tank the one-way valve on it is bad but Fleetwood dose not show on parts list