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07-07-2017, 06:50 AM
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#1
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New Member
Join Date: Feb 2017
Location: Las Cruces
Posts: 6
M.O.C. #19456
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Shower drain blocked
We have a 2017 3720RLThe last day of a 28 day trip, while the washing machine was running, the shower began filling with water from the drain and then it would not drain when we enptied the gray tank. We took it for service and was told because of the design, the grey tank drain and washing machine drain both have to be open at the same time when using the washing machine.
Now were dry camping and first shower, the drain is blocked again. Has this happened to anyone else? How do we fix this blocked drain?
__________________
Wendy F
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07-07-2017, 07:26 AM
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#2
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Haven't found one of these in our 2017 yet, but the 2010 had one of these in the basement ceiling for the bathroom drain. Backing it up will cause the bladder to fold wrong and you have to take it apart and gently smooth the bladder back in place. If you do have one, do not run a snake down into it.
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07-07-2017, 12:29 PM
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#3
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,133
M.O.C. #6433
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My older Monte has the traditional P traps and are no problem under the same scenario. Sometimes a better mousetrap is not as good as the old ones.
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Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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07-07-2017, 03:18 PM
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#4
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New Member
Join Date: Feb 2017
Location: Las Cruces
Posts: 6
M.O.C. #19456
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DQDick you said you have one of these.........what are you talking about?
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Wendy F
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07-07-2017, 03:44 PM
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#5
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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In the shower drain is a device that is a rubber tube with the bottom end flattened. This is enclosed in a plastic tube that hand screws onto the drain fitting in the shower. You can gently open it up with a wooden chopstick. My used to stick shut, then would remain open and allow tank odor into rv. I removed the piece od cap and installed a regular s hedule 40 pvc ptrap that I got at lowes. Problem solved for good.
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07-07-2017, 05:13 PM
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#6
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,323
M.O.C. #4831
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Do a "Search" on "hepvo" which will bring up a number of postings about this water-less "P" trap. One member had exactly the same problem as you (washer backed up drain, then shower won't drain). Read post #3 here
The valve is located behind the back wall of the storage compartment on the passenger side. Remove the wall, remove the Hepvo valvle, straighten out the bladder, and re-install it.
__________________
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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07-07-2017, 07:52 PM
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#7
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Quote:
Originally Posted by Wflamm@gmail.com
DQDick you said you have one of these.........what are you talking about?
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Sorry! One of these: https://www.amazon.com/dp/B004A2YFG4...=1QSG7NJW22OCT
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07-07-2017, 09:16 PM
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#8
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,676
M.O.C. #12947
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On our rig, the Hepvo device is attached directly below the shower drain, and I occasionally use a small bottle brush to clean that rubber tube. This keeps it clean so it closes properly. There is also one below the one bath sink, and that one has to come out to clean. Usually these need to be cleaned several times a year, as we full time in our rig.
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Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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07-09-2017, 07:26 PM
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#9
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Montana Master
Join Date: Jun 2010
Location: Colorado Springs
Posts: 3,335
M.O.C. #10496
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Quote:
Originally Posted by carl n susan
Do a "Search" on "hepvo" which will bring up a number of postings about this water-less "P" trap. One member had exactly the same problem as you (washer backed up drain, then shower won't drain). Read post #3 here
The valve is located behind the back wall of the storage compartment on the passenger side. Remove the wall, remove the Hepvo valvle, straighten out the bladder, and re-install it.
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Good advice Carl. Thanks
__________________
2010 3150RL
LevelUp, Dual 6 volt batteries, Progressive Industries EMS HW50C, Honda EU2000i Generator, Bridgestone Duravis R250 tires, Torklift Glowstep Revolution Stairs, LED Tail lights
2015 RAM 3500 Laramie SRW LB CC Cummins 6.7L Aisin Trans B&W RVK3600
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07-15-2017, 06:19 PM
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#10
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Montana Fan
Join Date: Dec 2015
Location: Nokomis
Posts: 464
M.O.C. #18144
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is this the way they do shower drains now? I'm not having issues but if I do, ill know what to look for.
Ill have to look in my storage area and see what I have. I think I still have a p trap in the bathroom under the sink.
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Ed
2016 Montana 3950 BR
2004 Montana 3650 RK
2019 Ram 3500 SRW Laramie CTD 6.7
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07-15-2017, 09:26 PM
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#11
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Once I had issues on the old rig we took out the factory things with the holes in them and put those mesh screens in the drains in the bath and the sink that you can get from Amazon or any RV store. We have to clean them almost daily, but we've never had another problem with the valve in six years of full timing.
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