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Old 01-22-2013, 12:48 PM   #1
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3 vent caps on roof

Having trouble with grey tank vent getting a burp in bath sink. While on the roof checking vent I have 3 caps 1 I would say os right side is black tank 1 on left looks to be grey tank bothright above bath area. Now there is 1 just in front of entry door and I see nowhere that is comes through ceiling or goes down the wall, what could it be? On the burp problem I have already changed both plumbing vents under the sinks. Thanks
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Old 01-22-2013, 01:08 PM   #2
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I am not familiar with your layout. It is possible that in your camper the sink does not have a vent that penetrates the roof. Look under the sink for a "ventless" air break that may be stuck closed.

If you have one and it sticks, they are very easy to replace (they unscrew) and very inexpensive.

NEW OATEY 39012 USA MADE BLACK ABS AUTOMATIC VENT PLUMBING AIR ADMITTANCE on eBay!

Air Admittance Valves from Oatey | The Home Depot - Model 39018
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Old 01-22-2013, 02:00 PM   #3
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Herk, Already changed both of those kitchen and bath. My unit is a 359Xl and there is no plumbing in front of side door. The vent on the roof in front of door seems to go nowhere there is a cabinet there but no pipe showing inside and wall is not thick enough for pipe to come up through the wall. Thanks for your answer.
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Old 01-22-2013, 02:14 PM   #4
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It could be a dummy cap to cover access for a possible satellite mount. Do you already have a satellite dish or a pre-wired prep package?
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Old 01-23-2013, 09:05 AM   #5
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dondash Thanks it is wired for sat
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Old 01-23-2013, 09:18 AM   #6
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Do you have a washer hookup up front?
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Old 01-23-2013, 12:00 PM   #7
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Quote:
Originally Posted by 63belv View Post
dondash Thanks it is wired for sat
It is likely that one of the vent caps is a dummy hiding the wiring access for the sat; that's how my coach is laid out.
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Old 01-23-2013, 12:21 PM   #8
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Possible attic vent? My previous rig had them for that purpose.
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Old 01-24-2013, 01:51 PM   #9
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Like Tigg.. said. I have 2 attic vents and 3 plumbing vents. When you replaced it what did you see?
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Old 01-24-2013, 07:55 PM   #10
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I am going with Gary and say it is a dummy. The coach is wired for sat. and the location fits. Still have not solved burp. Thanks
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