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08-19-2014, 08:11 AM
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#1
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Montana Master
Join Date: Apr 2013
Location: Arroyo City
Posts: 3,110
M.O.C. #13395
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Odor
I have noticed a bad a smell from the bathroom sink at times. Today I got ambitious and looked to see if I could figure out why. The slip joint on the trap connection didn't have a washer. My kitchen sink had a leak, and it didn't have a washer either. I guess if you build a thousand rigs and save fifty cents on each, it adds up. I would hope pride in construction would override that thought process. Plastic fittings will work for a while without the gasket, but will eventually leak.
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08-19-2014, 09:30 AM
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#2
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Montana Fan
Join Date: Mar 2011
Location: gresham
Posts: 489
M.O.C. #11202
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Also is caused by festering water in the washing machine supply lines when they are not in use. A pretty well documented cause. The water goes bad in those lines, and when the bathroom sink faucet is used, it draws some of the nasty water out of those lines because it is the closest plumbed faucet to the washing machine supply lines.
Since I will never have a washer/dryer in my rig, I just disconnected those water lines and capped them.
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08-19-2014, 09:31 AM
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#3
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Montana Master
Join Date: Aug 2007
Location: Waterford
Posts: 3,693
M.O.C. #7500
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Quote:
quote:Originally posted by Overlord
Since I will never have a washer/dryer in my rig, I just disconnected those water lines and capped them.
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Good idea!
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08-19-2014, 10:24 AM
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#4
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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Quote:
quote:Originally posted by Tom S.
Quote:
quote:Originally posted by Overlord
Since I will never have a washer/dryer in my rig, I just disconnected those water lines and capped them.
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Good idea! ''
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Hmm! Why didn't I think of doing that.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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08-19-2014, 10:42 AM
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#5
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Montana Master
Join Date: Apr 2013
Location: Arroyo City
Posts: 3,110
M.O.C. #13395
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My washer drain goes directly to the sewer hose
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08-19-2014, 12:10 PM
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#6
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Montana Master
Join Date: Mar 2013
Location: Hanover
Posts: 1,471
M.O.C. #13325
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If you've never opened them up they shouldn't have any water in them. Even is some were pushed in by pressure, it would be pushed back out by the compressed air in the lines when you unhook to travel. Don't quite understand how this could happen unless you had a W/D and let it sit unused with untreated water in the lines.
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08-19-2014, 01:49 PM
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#7
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,363
M.O.C. #4831
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Quote:
quote:Originally posted by WaltBennett
...Don't quite understand how this could happen...
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It wouldn't seem like the washer lines should be a problem, but there are numerous folks here who have had the stench from the sink and after opening the water lines for the washer (use a hose) the smell is gone. This has nothing to do with the drain/sewer line. It is a phenomenon associated with the washer water supply lines particularly those models with the washer up front near the bathroom sink. I am not all that familiar with a 3750 but if the washer/dryer location is anywhere near to the bathroom sink, try flushing the lines. Obviously if you do have a washer, the lines are being used and the smell problem is someone where else.
__________________
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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08-19-2014, 04:46 PM
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#8
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Site Team
Join Date: Aug 2007
Location: Omaha
Posts: 6,750
M.O.C. #7560
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Hey LC-- How did this thread change from a missing washer in the line under the bathroom sink and kitchen sink to a laundry washer thread
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08-19-2014, 07:16 PM
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#9
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Montana Fan
Join Date: Apr 2014
Location: Eureka
Posts: 276
M.O.C. #14208
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A good point about plugging off the WD lines. A another RVer told me of a story that happen to them. They used their WD closet for storage and something fell and hit one of the hoses and turned the faucet on and they had quite a mess by the time they realized the problem. If not using the WD you should cap them off.
Jim & Margie Bonhote
2014 Montana 3582RL
2006 Ford F350 4X4 Lariat
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08-19-2014, 08:16 PM
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#10
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Montana Master
Join Date: Mar 2012
Location: Redding
Posts: 1,421
M.O.C. #12339
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I know it's not your problem, that said I have had really bad gray water smell from bathroom and kitchen sinks. I have replaced 2 of the "air vent anti siphon" devices, mounted inline. It's a safety valve, but gets stuck often. I keep two spares. Weak link in the system. FYI...
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08-19-2014, 10:36 PM
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#11
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Montana Fan
Join Date: Mar 2011
Location: gresham
Posts: 489
M.O.C. #11202
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Quote:
quote:Originally posted by Rondo
Hey LC-- How did this thread change from a missing washer in the line under the bathroom sink and kitchen sink to a laundry washer thread
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Yeah, I kind of derailed the topic. But, if the slip-fit is above the trap, which is supposed to be filled with water, how does the stink get past the water in the trap and out through the unsealed joint? Wouldn't the odor just go on up the tube and out the sink drain hole anyway? It has happened quite a few times where people thought that the stink was coming from the trap, but the culprit was that they did not have a W/D, and the W/D water supply lines were the source of the funky smell. So, I thought I would throw that out there as a possible cause of the occasional malodorous sensation to the olfactory senses that he has been having.
...and back on topic, ...yes, big companies save millions of dollars over the life of a product by cutting corners like that. In this case though, it is more likely that "Abram Yoder", the old world craftsman that assembled it, ran out of washers in his pocket, and didn't want to go get some more that were all the way over by "Elijah Graber's" work station.
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08-19-2014, 10:59 PM
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#12
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Montana Fan
Join Date: Mar 2011
Location: gresham
Posts: 489
M.O.C. #11202
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Quote:
quote:Originally posted by WaltBennett
If you've never opened them up they shouldn't have any water in them. Even is some were pushed in by pressure, it would be pushed back out by the compressed air in the lines when you unhook to travel. Don't quite understand how this could happen unless you had a W/D and let it sit unused with untreated water in the lines.
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It gets in there when the system is unpressurized and gravity takes over, and yes, maybe not tippy-top filled all the way to the valves in the washer cabinet, but that actually makes it worse than being completely filled with water, as there is more air in there for aerobic bacteria to use.
I imagine that it is more of a problem for people that are on untreated well water, as opposed to those using chlorinated public utility water.
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08-23-2014, 08:17 PM
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#13
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Montana Master
Join Date: Aug 2004
Location: Livermore
Posts: 5,144
M.O.C. #1920
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We have had the smell in our first Montana (3400) and opening the washer lines and draining them solved the problem. We just do it every year now and haven't had a repeat.
__________________
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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08-23-2014, 08:35 PM
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#14
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Montana Master
Join Date: Apr 2013
Location: Arroyo City
Posts: 3,110
M.O.C. #13395
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The slip fit was after the trap, there was about a 1/4 inch gap in the connection. I can't figure out why I never had a wet spot under the sink. The washer has solved the odor problem. My washer does not connect to house drains, it goes straight to sewer
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08-24-2014, 05:32 PM
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#15
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Seasoned Camper
Join Date: Jun 2014
Location: Salem
Posts: 79
M.O.C. #14437
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Quote:
quote:Originally posted by Artemus Gordon
I know it's not your problem, that said I have had really bad gray water smell from bathroom and kitchen sinks. I have replaced 2 of the "air vent anti siphon" devices, mounted inline. It's a safety valve, but gets stuck often. I keep two spares. Weak link in the system. FYI...
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This last trip out we noticed an odor in the kitchen when my bride was doing the dishes. It seemed to be coming from under the cabinet area below the sink. I assume that this (air vent anti siphon) is the problem. I hope Keystone will furnish the replacement part (under warranty) and let me fix at home instead of dragging it to the dealer.
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