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09-07-2021, 03:21 AM
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#1
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Montana Fan
Join Date: Feb 2018
Location: Moline
Posts: 166
M.O.C. #21279
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Bathroom sink smell
We have two sinks in the front bathroom. Always have a bad smell coming out of the drains. Have to leave the plug in them. There are not pee traps in the drain pipe. There is a waterless trap in the drain line on the. Dont know if it is working or not. This is a new camper.
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09-07-2021, 05:34 AM
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#2
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,143
M.O.C. #25165
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This sounds like a HepVo valve. They can be removed and cleaned but they have a fragile membrane that is very easily destroyed so use caution if you try to clean it.
https://hepvo.com/
__________________
Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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09-07-2021, 08:38 AM
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#3
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,953
M.O.C. #5651
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Quote:
Originally Posted by RMcNeal
This sounds like a HepVo valve. They can be removed and cleaned but they have a fragile membrane that is very easily destroyed so use caution if you try to clean it.
https://hepvo.com/
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Also, an FYI for you. My current or previous rig (can't remember which) had the sink drain into the BLACK tank!!! not the gray tank. I could see the PVC pipe under the bathroom from the pass thru area! Nice job Keystone!
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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09-07-2021, 08:48 AM
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#4
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,371
M.O.C. #4831
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It helps us if you add a Signature for your Post that lists the year and model of your RV.
One cause of the smell in the sink is this (not sure how old your rig is). If you are plumbed for a washer/dryer in the area near your sink and you don't have one, the water in those lines can become skanky and will feedback to the sink. You just need to attach a hose to the water lines and flush them into the drain or wherever. .
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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09-07-2021, 11:45 AM
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#5
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Montana Fan
Join Date: Feb 2018
Location: Moline
Posts: 166
M.O.C. #21279
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Thank you. I don't know how to add all the info at the bottom. 2021 3931fb
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09-07-2021, 02:47 PM
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#6
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,703
M.O.C. #24086
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If you have enough room under the sink, replace the HEPVO valve with a regular U trap.
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Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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09-07-2021, 05:39 PM
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#7
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Montana Master
Join Date: Aug 2004
Location: Livermore
Posts: 5,148
M.O.C. #1920
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As Carl said, if your unit has washer and dryer prep, drain those lines (hot and cold) and see if that water is bad. Water gets caught in those lines and stagnates.
__________________
Ron and Terrie Ames - MOC #1920/KF0NTA
2021Montana 3230CK Super Solar Legacy Package
2021 Ram 3500 Laramie Longhorn, BIM Charging
4x4, SRW, LB, Crew Cab, Pullrite 3900 Hitch
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09-07-2021, 07:10 PM
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#8
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,953
M.O.C. #5651
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Quote:
Originally Posted by snowmanfx4
Thank you. I don't know how to add all the info at the bottom. 2021 3931fb
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upper left of home screen - User CP. Click this. Then down on left is Edit Signature. This is where you can add stuff like my maps and unit info
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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09-08-2021, 10:11 AM
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#9
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Montana Master
Join Date: Sep 2014
Location: Full Timer In Naples, Florida
Posts: 1,049
M.O.C. #15731
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Use hydrogen peroxide.
__________________
2017, 3500 Ram Big Horn, 4x4, Crew Cab, DRW, Aisin Transmission, 4:10. Curt Q20, 2014 Mountaineer 331 RLT, Sailun's on the rv and truck.
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