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Old 03-17-2015, 12:09 PM   #1
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Seneca smell only when driving

I have a 2013 Seneca and have noticed a smell only when in motion...I have had my wife crawling around trying to find (amusement is the only result) I cannot find the issue or smell source. I have had a fridge issue where we had food spoilage but it was throughly cleaned Any thoughts??
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Old 03-17-2015, 12:38 PM   #2
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From black tank? Believe there is an exhaust pipe on the roof...plugged/covered up?
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Old 03-17-2015, 01:15 PM   #3
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What does the smell, smell like?
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Old 03-17-2015, 01:58 PM   #4
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We had a 2013 Entegra Aspire. Had a problem with smell. It was the washing machine dirty water hose. It was too long and dirty water sat in it.
We just made that hose smaller and no more smell, and no more water sitting in the hose...

Gary



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I have a 2013 Seneca and have noticed a smell only when in motion...I have had my wife crawling around trying to find (amusement is the only result) I cannot find the issue or smell source. I have had a fridge issue where we had food spoilage but it was throughly cleaned Any thoughts??
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Old 03-17-2015, 05:06 PM   #5
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Originally Posted by troutslayer View Post
What does the smell, smell like?
X2, Could be a lot of things, is it stronger in any particular area? If it smells like sewer it could be a trap that sloshed the water out. Our htt shower does that, so I pull a drain plug in while traveling. There are a series of spring loaded vents under each sink, I have seen them go bad. If the odor is up in the cab, you might have a antifreeze leak in the heater core.
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Old 03-17-2015, 05:13 PM   #6
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In mine I had a sewer smell only when driving. I installed one of these
Camco RV Cyclone Sewer Plumbing Vent - Walmart.com

And the smell went away. Air can be pushed down the roof vent for the black tank and end up in the living area.
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Old 03-21-2015, 01:15 PM   #7
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We had a smell in our mh when driving. The water was not staying in the sink traps and causing sewer gas from the gray tank. Putting stoppers in the sink helped a little as well as cyclone vents on the stacks. I wouldn't think a black tank would smell unless you used the toilet because it is sealed and there isn't a way for the smell to get in the unit when you are under way. They do make a sink trap that seals and that may be the best solution.
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Old 03-23-2015, 01:50 PM   #8
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I bet you will find you have an ASTVD installed under one of your sinks.
I am attaching the definition and drawing from the RVIA standards book.
I have one and it burps grey water tank gas, which can be nastier than black water.
I use treatment chemicals in the grey water tank now and it helps. I was thinking about defeating this and relying soles on the roof vent, but adding a venturi device on the roof.
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Old 04-09-2015, 08:51 PM   #9
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You Nailed it!

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Originally Posted by TX_Arvee View Post
I bet you will find you have an ASTVD installed under one of your sinks.
I am attaching the definition and drawing from the RVIA standards book.
I have one and it burps grey water tank gas, which can be nastier than black water.
I use treatment chemicals in the grey water tank now and it helps. I was thinking about defeating this and relying soles on the roof vent, but adding a venturi device on the roof.
TX_Arvee

The ASTVD was the issue. i had strong smells only when in motion and we located the odor coming from under the kitchen sink. I put down some enzyme cleaner and the only smell i get now is that wonderful aroma...little better than they grey water smell...

thanks for the heads up!

KingRoy
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Old 04-09-2015, 08:53 PM   #10
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Found out it was the grey water tank smell coming from a one way vent from under the kitchen sink...
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