How does plumbing vent system work? - Page 6 - Escape Trailer Owners Community

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Old 06-19-2015, 12:54 AM   #51
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On the 19 the grey water kitchen drain is vented through the roof.

The bathroom sink, being on the other side of the trailer doesn't lend its' self to connecting to it hence the short vertical length to act as a vent to prevent the outgoing water from siphoning out the water in the sink trap. However leaving the pipe open creates a potential problem of odours from the tank entering the trailer.

The side vent is a good solution and a cheater vent is an alternative. Personally, I wouldn't leave it open. Mine came with a cheater vent installed.

Ron
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Old 06-19-2015, 09:07 AM   #52
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Quote:
Originally Posted by Ron in BC View Post
On the 19 the grey water kitchen drain is vented through the roof.

The bathroom sink, being on the other side of the trailer doesn't lend its' self to connecting to it hence the short vertical length to act as a vent to prevent the outgoing water from siphoning out the water in the sink trap. However leaving the pipe open creates a potential problem of odours from the tank entering the trailer.

The side vent is a good solution and a cheater vent is an alternative. Personally, I wouldn't leave it open. Mine came with a cheater vent installed.

Ron
At a cost of $6 why wouldn't ETI install the cheater vent in all of the trailers that they produce ?
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Old 06-19-2015, 09:37 AM   #53
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Anyone know what the difference of these two devices is?

Not sure if I am actually going to install one or not. I haven't had any odor issues so I might just leave it as is.

Oatey 39016 Sure-Vent Air Admittance Valve with 1-1/2-Inch by 2-Inch PVC Adapter, 2-Inch - Faucet Aerators And Adapters - Amazon.com

http://www.amazon.com/Oatey-39012-In...WRJH0P60TP52GC
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Old 06-19-2015, 10:47 AM   #54
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Anyone know what the difference of these two devices is?

about $13......
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Old 06-21-2015, 04:01 PM   #55
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Got an email back form ETI. They said the open tee is the normal design and there is a p trap under the trailer. I left the tee as it was and reinstalled the furnace.
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Old 06-21-2015, 06:08 PM   #56
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I find that it is usually easier to understand products from the manufacturer's website or catalog than from Amazon or (worse) eBay ads:
Both serve the same function, to be an air admittance valve, and are from the same manufacturer.

The second one seems to be their basic model; it's not even listed among their air admittance valves, but as an accessory to the box it could be mounted in. Besides not coming with an adapter, it may also not have as much airflow capacity, or may take more pressure difference to open. Given that it's buried in a cabinet, I would choose the better one...
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Old 11-02-2016, 01:41 PM   #57
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Is this vent pipe related to the bathroom sink? If the bathroom sink is not installed will there still be this inside vent stack?
I'm interested if this will be on a 5.0 TA without the sink option. Or, are the new models now supplied with the vent valve? I don't see a roof vent for the grey tank, just one for the black.
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Old 11-02-2016, 01:44 PM   #58
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Quote:
Originally Posted by SFDavis50 View Post
Is this vent pipe related to the bathroom sink? If the bathroom sink is not installed will there still be this inside vent stack?
I'm interested if this will be on a 5.0 TA without the sink option. Or, are the new models now supplied with the vent valve? I don't see a roof vent for the grey tank, just one for the black.
The vent you see on top is for the power vent. That's standard whether you get a sink or not.
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Old 11-02-2016, 01:53 PM   #59
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My question is about the plumbing vent not the air vent in the bathroom. There is a plumbing vent for the black tank which extends up thru the roof of the trailer but I don't see a grey tank vent which also goes thru the roof.
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Old 11-02-2016, 02:03 PM   #60
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The white cap above the bathroom is for the black water tank. The gray water tank vent is on the top over the kitchen sink.
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