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11-30-2012, 11:04 AM
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#1
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Established Member
Join Date: Jun 2011
Location: Myrtle Creek
Posts: 25
M.O.C. #11517
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Rear Kitchen sink /tank vents under the sink area?
On our 2013 3000RK; As the rear kitchen grey tank fills up we do notice an odor in the kitchen. Today we noticed that the vent pipe just stops under the counter-top, just to the right of the sink. The vent pipe has a cap with two small holes, which is probably where the odor is coming from. It is venting the sink trap and the rear grey tank. I wonder why Keystone did not vent this drain and tank through the roof?? We dump the tank every few days and the odor does dissipate fairly quickly. Anyone else have this issue and have any solutions. We do put a holding tank chemical packet in. Any other ideas for a non-toxic anti odor solution. Or should I cut a hole and vent the pipe out the back of the rig? Thanks... Lisa and Hans
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11-30-2012, 11:25 AM
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#2
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,727
M.O.C. #7992
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Instead of taking it through the roof they used what is sometimes called a quick vent. It has a diaphragm in it so when the sink drains it allows air in the vent to aid in draining the sink. When the sink empties the diaphragm is suppose to close to prevent gas from the holding tank into the living area. It should just screw off the pipe. Go to Lowe's or Home Depot or any plumbing supply shop and get a replacement. Take the old one with you to insure the replacement will fit. Jim
__________________
2006 3000RK
2009 Ram 2500
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11-30-2012, 11:28 AM
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#3
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Established Member
Join Date: Jun 2011
Location: Myrtle Creek
Posts: 25
M.O.C. #11517
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Thanks Jim, will go to Home Depot tomorrow and get a new quick vent cap. Hopefully that will do the trick. Hans
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11-30-2012, 04:04 PM
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#4
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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It's what they do in restaurants and stick homes when a remodel needs a vent and there's no place to put one. On the other hand they use better parts than Keystone does on this and other things. X2 on replace it with a good one.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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11-30-2012, 04:37 PM
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#5
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Established Member
Join Date: Jun 2011
Location: Myrtle Creek
Posts: 25
M.O.C. #11517
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Is this the vent cover that you recommend?
http://www.homedepot.com/buy/oatey-s...l#.ULmJOYc8B8E
How do you know that the exiting vent cover is bad? I pulled it off and it looked normal.
Thanks,
Hans
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11-30-2012, 11:45 PM
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#6
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,727
M.O.C. #7992
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It can look good, most of them do. What you can't see is if the diaphragm is sealing completely. Forget your vision and trust your smell. Something is letting gas back into the unit. They cost less than $10. Jim
__________________
2006 3000RK
2009 Ram 2500
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12-01-2012, 04:06 AM
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#7
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Montana Master
Join Date: Aug 2006
Location: merced
Posts: 983
M.O.C. #6171
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It looks like Keystone went cheap on the newer models, I have a 07 3000RK and the vent goes to the roof.
They take the vent out the right side of the sink cabnit and the vent it through the same roof vent as they use for the refrigiator.
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12-01-2012, 08:08 AM
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#8
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Established Member
Join Date: Jun 2011
Location: Myrtle Creek
Posts: 25
M.O.C. #11517
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Got the Sudor Redi-Vent for 18 bucks at Home Depot and so far so good...no odor from under kitchen sink. I think I will call Keystone on Monday and let them know that they should go back to old way of venting out the roof, even if they have to combine it with the fridge vent.
http://www.ipscorp.com/plumbing/studor/redivent
Thanks all on this forum for your advice.
Hans
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12-01-2012, 08:19 AM
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#9
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,696
M.O.C. #4831
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You can call if you like but it won't do much good. Montana has dropped the 3000RK from its lineup.
__________________
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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12-01-2012, 09:48 AM
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#10
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Established Member
Join Date: Jun 2011
Location: Myrtle Creek
Posts: 25
M.O.C. #11517
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Just because they are dropping the 3000RK, doesn't mean you can't let Keystone know about an issue. Keystone and other RV manufacturers are changing/dropping/adding models all the time. By getting customer feedback, hopefully they (they manufacturers) will use our input for improvements. At least it doesn't hurt to try.
Hans
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12-03-2012, 12:53 AM
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#11
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,727
M.O.C. #7992
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mtheo's must be vented different than mine as my 2006 3000rk has the quick vent. You have to really crawl up into the cabinet to follow the piping. Even though the piping under the sink goes to the right it does not go up through the refrigerator vent. If it did it would have to be a continuous pipe all the way through the roof. To dump it into the refrig vent chase would still allow sewer gas into the living area. Jim
__________________
2006 3000RK
2009 Ram 2500
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06-01-2013, 11:36 PM
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#12
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Seasoned Camper
Join Date: Mar 2013
Location: Bakersfield
Posts: 64
M.O.C. #13291
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Our new 2014 3900FB just has an open ended pipe under the kitchen sink for a vent. I plan to swing by Home Depot tomorrow and pick up a Oatey Sure-Vent 1-1/2 - 2 in. ABS Air Admittance Valve. Not sure what Keystone was thinking on that one!
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06-02-2013, 03:54 AM
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#13
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Montana Master
Join Date: Apr 2013
Location: Arroyo City
Posts: 3,110
M.O.C. #13395
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I think Keystone install some type of back flow device in lines to prevent gas escape. I had to have it replaced on my brand new Monty washer drain
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