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01-02-2013, 12:31 PM
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#1
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Senior Member
Join Date: Aug 2012
Location: Essex Junction Vermont
Posts: 342
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kitchen sink wont drain
All the drains empty except the kitchen sink???
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Marianne
2012 F-350 "Festus"
2011 Montana 357RL "Mabel"
Superlow Sportster
Heritage Softail Springer
2009-2012 VRI
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01-02-2013, 02:32 PM
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#2
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Senior Member
Join Date: Jan 2011
Location: Central Florida
Posts: 478
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The first question I have to ask: Have you found the Galley gate valve handle???? Montanas as with many other newer rigs have a total of 4 tanks, a fresh water tank, the Black Tank, and two Gray holding tanks, Gray one is usually the shower and sometimes the washer drain, then the second Gray or Galley tank, which handles the kitchen sink. there should be a second gray handle on the road side frame, just infront of the front axle or on some units it located on the frame between the axles. If you go over and join the Montana Owners Forum, http://www.montanaowners.com/ , you probably get an answer from someone with your exact model who can tell you exactly where that handle is.That is a very common problem for new Montana owners.
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2011 Chevy Silverado 3500HD Ext Cab LT DRW Duramax/Allison pulling a 2012 SOB (still Thor, but not a Keystone), Dual ACs, 4 Door Fridge, Fireplace, Sleep Number Bed, Level-Up Auto Levelers, Disc Brakes, Winegard DirecTV SlimLine Auto Dish, Onan 5.5K, Splendide Combo Washer/Dryer, GY G114s on HiSpec 17.5 wheels, TrailAir Tri-Glide Pin Box, Mor/ryde IS.
Michelle & Ann Sullivan and 4 American Shorthairs
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01-02-2013, 03:34 PM
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#3
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Senior Member
Join Date: Aug 2012
Location: Essex Junction Vermont
Posts: 342
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There are the two in the hook up station and I found one under one of the slides on the same side as the hook up station. Where else would I look?
__________________
Marianne
2012 F-350 "Festus"
2011 Montana 357RL "Mabel"
Superlow Sportster
Heritage Softail Springer
2009-2012 VRI
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01-02-2013, 03:50 PM
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#4
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Site Team
Join Date: Jun 2009
Location: Venice
Posts: 5,346
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Quote:
Originally Posted by curlyfungirl
There are the two in the hook up station and I found one under one of the slides on the same side as the hook up station. Where else would I look?
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That is all there is. 1.black 1.gray 1.galley - If you have ever overfilled the galley tank there may be debris in the mechanical vent for that tank. Most galley tanks are not vented trough to the roof and have a (cheater) vent under the sink cabinet. Simply unscrew it and see if it is working properly.
Of course that big diamond you always wear may have fallen out of it's setting and is clogging the drain. Let us know what you find, Hank
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Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD .. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite
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01-03-2013, 08:35 AM
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#5
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Senior Member
Join Date: Aug 2012
Location: Essex Junction Vermont
Posts: 342
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Quote:
Originally Posted by hankpage
That is all there is. 1.black 1.gray 1.galley - If you have ever overfilled the galley tank there may be debris in the mechanical vent for that tank. Most galley tanks are not vented trough to the roof and have a (cheater) vent under the sink cabinet. Simply unscrew it and see if it is working properly.
Of course that big diamond you always wear may have fallen out of it's setting and is clogging the drain. Let us know what you find, Hank
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What does the cheater vent look like?
__________________
Marianne
2012 F-350 "Festus"
2011 Montana 357RL "Mabel"
Superlow Sportster
Heritage Softail Springer
2009-2012 VRI
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01-03-2013, 08:48 AM
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#6
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Site Team
Join Date: Mar 2009
Location: Fraser Valley BC Canada
Posts: 7,015
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The "cheater" vent is located under your kitchen sink near your P trap. It is a small, ABS plastic fitting/cap at the end of a short black pipe. It has a simple, screw fitting, is spring-loaded and has a rubber diaphragm inside. This rubber diaphragm may be cracked, brittle, clogged or damaged and could cause improper drainage and/or odours if it isn't working properly.
Once you find it, unscrew and examine it. Have a look at the seal and make sure it looks and feels good as well as the spring mechanism.
There may also be some debris in the short pipe.
Try checking the cheater vent and let us know how you make out.
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2008 Cougar 5th Wheel 27RKS
2005 2500 GMC Duramax
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01-03-2013, 10:31 AM
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#7
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Senior Member
Join Date: Oct 2009
Location: Bessemer, Alabama
Posts: 323
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Follow this link for a picture and description. Yours may look a little different.
http://www.mobilehomerepair.com/checkvent.html
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2013 F150 XLT Supercrew EcoBoost
'08 Passport 280BH
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01-03-2013, 11:54 AM
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#8
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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The temperature in Mapleton, UT has been in the mid to high teens at night and up to about freezing in the day. The "basement heat" in your RV is essentially directed at the front tanks and the fresh water tank, the gray tank for the kitchen is not heated as well. There is a very good chance that nothing is wrong with the "drain ability" of your RV, rather that tank or the drain valve and associated plumbing is simply frozen. Before going too far with tearing out your plumbing looking for something that may have "broken" I'd urge you to make sure that you're not just facing a frozen dump valve.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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01-03-2013, 03:07 PM
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#9
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Senior Member
Join Date: Aug 2010
Location: North Texas
Posts: 1,000
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In one of my past posts associated with installing tank heaters, in the Mods section, I posted some pictures of the underbelly of my Alpine. As JRTJH mentioned, there is a 2.5 inch vent that comes off the furnace plenum and has Ts at the dump valves. The galley tank was at the end of this run, so probably not a lot of heat gets to it. The space around the galley tank would allow a lot of cold air infiltration. So, it might be a frozen valve or tank, it is possible.
Ron
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2011 Alpine 3640RL (Beauty)
(Gone! Now replaced by Beauty3)
2016 Ford F-450 (The Beast)
Diesel 4x4, DRW, LB, CC
Comfort Ride Hitch
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01-03-2013, 04:55 PM
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#10
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Senior Member
Join Date: Aug 2012
Location: Essex Junction Vermont
Posts: 342
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Awsome! I will do some exploring under my sink tonight!
__________________
Marianne
2012 F-350 "Festus"
2011 Montana 357RL "Mabel"
Superlow Sportster
Heritage Softail Springer
2009-2012 VRI
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01-04-2013, 02:08 PM
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#11
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Senior Member
Join Date: Aug 2012
Location: Essex Junction Vermont
Posts: 342
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Well, no catch drain thing under any of the sinks. Now where should I look for the darn thing?
__________________
Marianne
2012 F-350 "Festus"
2011 Montana 357RL "Mabel"
Superlow Sportster
Heritage Softail Springer
2009-2012 VRI
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01-04-2013, 02:30 PM
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#12
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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If the sink is "stopped up" it's just like a stickbuilt house sink, use a plunger.
I still think that if you're in Utah in January and your sink won't drain, head outside, pull the gray sink drain and if nothing comes out, it's a frozen tank/dump valve.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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