Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
 

Go Back   Keystone RV Forums > Keystone Fleet | Keystone RV Models > Fifth Wheels
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 12-26-2011, 09:31 AM   #1
guatdoc
Junior Member
 
Join Date: Oct 2011
Posts: 3
HELP! My kitchen sink backed up!!

Over christmas weekend (of course) my kitchen sink started backing up. I have checked the traps at both the rear kitchen sink and the little bath sink. they are all open. the shower seems to drain directly into the grey water tank. However some of the drain water from the bath sink may be backing up into the sink lines, not sure.

any one got any ideas here? i am new to RV plumbing systems. Looking at the pipes, there seems to be what may be some kind of vacuum breaker attachment at both the kitchen and bath sinks. could that be the problem.

how do i diagnose it?
guatdoc is offline   Reply With Quote
Old 12-26-2011, 09:40 AM   #2
jje1960
Senior Member
 
Join Date: Nov 2010
Posts: 692
Backup

Are you sure you have the main drain valve open? I know on our SRX, there is a separate grey tank for the kitchen sink.
__________________
2011 F350 DRW 4X4
"The Beast"
2011 Cougar 325 SRX
jje1960 is offline   Reply With Quote
Old 12-26-2011, 10:30 AM   #3
hankpage
Site Team
 
hankpage's Avatar
 
Join Date: Jun 2009
Location: Venice
Posts: 5,346
Sounds to me as if your galley gray tank is full. If your main gray water was filled it would back up to the lowest point in the shower drain. What model fifthwheel would help a lot. Hank
__________________
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
hankpage is offline   Reply With Quote
Old 12-26-2011, 10:41 AM   #4
guatdoc
Junior Member
 
Join Date: Oct 2011
Posts: 3
Sorry, i should have said. I have a 2000 model Montana, 29', two slides. i just bought it used from a dealer. they only showed me one valve each to empty the grey tank and the black tank.

where might i find another valve for the kitchen tank, although i do not believe it has two grey tanks.

thanks for your help. all the RV dealers are still closed today, so i cannot get help from a dealer here either.
guatdoc is offline   Reply With Quote
Old 12-26-2011, 11:05 AM   #5
hankpage
Site Team
 
hankpage's Avatar
 
Join Date: Jun 2009
Location: Venice
Posts: 5,346
From looking at the Keystone web page all three Montanas in 29' range only have one gray 38 gal. tank. If that tank were full it would back up to the shower drain first. When you opened the gray dump valve did any water come out at all????? Under the sink there is a valve that looks like This. If it is stuck or clogged it may not allow the water to drain correctly. It simply screws off .... with it removed the vacuum will be broken and the water should drain. Do not leave it off or sewer smells can enter the trailer. I hope this helps, Hank
__________________
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
hankpage is offline   Reply With Quote
Old 12-26-2011, 11:16 AM   #6
jrhaman
Junior Member
 
Join Date: Nov 2010
Location: USA
Posts: 20
Montana does not usually list the 2nd grey tank but the handle should be somewhere around the wheels on the street side. Just a T-handle coming through the frame.
__________________
]https://www.kram-a-lotinn.blogspot.com[/URL[/URL]]
jrhaman is offline   Reply With Quote
Old 12-26-2011, 10:29 PM   #7
KanTC
Senior Member
 
Join Date: May 2010
Location: New Mexico
Posts: 1,270
guatdoc,

The specs for all 2000 model year 5th wheels show 76 gal for gray water tanks...
and, that many gallons would typically indicate '2' gray tanks. As previously suggested,
look for a 2nd gray tank drain valve/handle.

http://www.keystone-montana.com/inde...pecs&year=2000

Hope this helps, and welcome to the forum.

Terri, the Chevy co-pilot & DH Kevin
__________________
'06 Chevy 2500HD 6.6L Duramax/Allison 4x4 CC SB
2010 Laredo 265RL {SOLD}
Reese 15K Pro-series (manual slide)
KanTC is offline   Reply With Quote
Old 12-27-2011, 05:58 AM   #8
hankpage
Site Team
 
hankpage's Avatar
 
Join Date: Jun 2009
Location: Venice
Posts: 5,346
Quote:
Originally Posted by KanTC View Post
guatdoc,

The specs for all 2000 model year 5th wheels show 76 gal for gray water tanks...
and, that many gallons would typically indicate '2' gray tanks. As previously suggested,
look for a 2nd gray tank drain valve/handle.

http://www.keystone-montana.com/inde...pecs&year=2000

Hope this helps, and welcome to the forum.

Terri, the Chevy co-pilot & DH Kevin
I hope there is a second tank which would make the fix easy, but the first three models (29' range) show 38 gal gray water and would be one tank.
__________________
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
hankpage is offline   Reply With Quote
Old 12-27-2011, 06:28 AM   #9
SteveC7010
Senior Member
 
SteveC7010's Avatar
 
Join Date: Sep 2011
Location: Northville NY in the Adirondacks
Posts: 2,128
If there is a second gray water tank, it will be FULL of kitchen waste which is likely to be particularly smelly.

I would treat it as you would black water until it has been drained and rinsed.

A quick look at the drain plumbing should quickly tell if there is a second gray tank. Presuming that the trailer has the master bedroom and bathroom located in the nose of the rig and the kitchen is center or rear, there should be a "tee" at or near the RV sewer drain fitting. One side of the tee should go forward to drain the black and bathroom gray tanks. The other side of the tee should go aft to drain the kitchen gray tank.

If the kitchen is far enough to the rear, on some rigs, there is actually a second RV sewer drain somewhere close to it.

On my Cougar, the RV sewer drain point and the tee and the lines that feed the tee are all below the enclosed belly pan so it is very obvious that there is a drain line going back towards the kitchen area.

If there is a 3" black ABS drain pipe headed back toward the kitchen, just following it should help locate the drain valve. If it is enclosed by the belly pan, it should not be difficult to pull just a couple of screws and peek in there with a flashlight.
__________________

'11 Cougar 326MKS loaded with mods
'12 Ford F250 SuperCab 6.7 PowerStroke Diesel
Amateur Radio: KD2IAT (146.520) GMRS: WQPG808 (462.675 TPL 141.3)
SteveC7010 is offline   Reply With Quote
Old 12-27-2011, 08:58 AM   #10
KanTC
Senior Member
 
Join Date: May 2010
Location: New Mexico
Posts: 1,270
Quote:
Originally Posted by hankpage View Post
I hope there is a second tank which would make the fix easy, but the first three models (29' range) show 38 gal gray water and would be one tank.
You're correct, although that info is for the (now orphan) travel trailers.

My reply was specific to 5th wheels, as stated.
The OP previously posted about a Montana 5th wheel, and I -assumed- he/she was now asking questions about that same trailer.
__________________
'06 Chevy 2500HD 6.6L Duramax/Allison 4x4 CC SB
2010 Laredo 265RL {SOLD}
Reese 15K Pro-series (manual slide)
KanTC is offline   Reply With Quote
Old 12-27-2011, 09:15 AM   #11
Hunter757
Senior Member
 
Join Date: Aug 2011
Location: Puyallup, Wa
Posts: 121
guatdoc, if you have two tanks there will be a second drain handle located street side just after the rear slide toward the back corner of the 5er. Just get on your hands and knees and look around it will look like a smaller sewer drain handle.

If you need pictures let us know and I will try and take some pictures today of mine. If your still not sure due what was suggested earlier and follow your pipes from the sewer hose hookup and follow the black pipe and see if you indeed have two tanks.


Good luck and keep us posted hope is nothing serious. Happy Camping!!
__________________


2008 F350 4x4 LB CC 6.4 twin turbo PSD
Prodigy P2 brake controler
Hijacker 16K Double pivot ultra
2007 Montana Mountaineer 307RK
New to us on 8/12/2011:
Hunter757 is offline   Reply With Quote
Old 12-27-2011, 01:13 PM   #12
SAABDOCTOR
Senior Member
 
SAABDOCTOR's Avatar
 
Join Date: Aug 2011
Location: WESTERN,CT
Posts: 2,095
Hi there and welcome my first montans was an 01 tt about 30 ft. I had a similar problem and there were two handels fordrainage one grey one black. Then when the sink backed up both tanks open sink still full i went crawling under the unit found a small hole in the artic insulation. Droped the insulation and the was a valve and a fitting. Looks like my handel went flying on the first trip. There was eveidence that it was there and it was a qick fix with some threaded rod 1/4" till i got home and made a god handle with a lock nut. So do not give up. Mine was opposite the sink in the kitchen just ahead of the wheels the other two were in the rear. Best of luck barney
__________________
BARNEY AND CHRISTINE
2010 MONTANA 3750FL
2005 DODGE 3500 DUALLY TD
2 RESCUE PUPS: SUSITNA AND CRYSTAL. RIP ALYESKA!
SAABDOCTOR is offline   Reply With Quote
Old 12-27-2011, 02:12 PM   #13
SteveC7010
Senior Member
 
SteveC7010's Avatar
 
Join Date: Sep 2011
Location: Northville NY in the Adirondacks
Posts: 2,128
Excellent point, Barney!

It is entirely possible that the extension or the cable for the kitchen gray tank dump valve is broken or missing or as originally suggested, just overlooked.

For the original poster, if you are not able to locate a second gray tank and its dump valve and handle by yourself, I suggest that you find a competent RV tech or someone who is familiar with RV plumbing systems and have this checked out right away.

If the gray water is backed up into your kitchen sink, there is the immediate possibility that it can leak out somewhere above the floor of the trailer.

If you try to travel without this situation remedied, there is also the possibility that gray water can be sprayed around the interior of the trailer due to the movement of the water in the holding tank. If at all possible, several gallons of gray water need to be drained before you move the trailer at all.
__________________

'11 Cougar 326MKS loaded with mods
'12 Ford F250 SuperCab 6.7 PowerStroke Diesel
Amateur Radio: KD2IAT (146.520) GMRS: WQPG808 (462.675 TPL 141.3)
SteveC7010 is offline   Reply With Quote
Old 12-27-2011, 03:07 PM   #14
hankaye
Senior Member
 
Join Date: Apr 2011
Location: Arrey,
Posts: 2,368
guatdoc, Howdy;

Everyone here has given you good information....
Please lett us know where the handle was.. could help the
person that has a similar problem.

hankaye
__________________
Striving for a less complicated life since 1949 ...

Home: 2008 Cougar 278 RKS
T.V.: 2004 F-250 4X4, Level III BulletProofed , Detroit Tru-Track Differential (915A550)
Dog: 2006 Border Collie (Rascal) aka Maximum fur dispersal unit. (08/04/2006 - 12/16/2017) RIP.
hankaye is offline   Reply With Quote
Old 12-27-2011, 05:35 PM   #15
f6bits
Senior Member
 
Join Date: Nov 2011
Location: SoCal
Posts: 1,739
If there's a second grey tank, shouldn't there be a second readout for how full it is?
__________________
-Scott, DW, DG, DB, and DD

2011 Passport 2590BH
2009 Ford F150 SuperCrew FX4 5.4L w/Max Tow
f6bits is offline   Reply With Quote
Old 12-27-2011, 06:02 PM   #16
SteveC7010
Senior Member
 
SteveC7010's Avatar
 
Join Date: Sep 2011
Location: Northville NY in the Adirondacks
Posts: 2,128
Quote:
Originally Posted by sdayman View Post
If there's a second grey tank, shouldn't there be a second readout for how full it is?
There should be, but it sounds to me like the dealer did not do a good job of educating the owner in the function and operation of the systems in the trailer.
__________________

'11 Cougar 326MKS loaded with mods
'12 Ford F250 SuperCab 6.7 PowerStroke Diesel
Amateur Radio: KD2IAT (146.520) GMRS: WQPG808 (462.675 TPL 141.3)
SteveC7010 is offline   Reply With Quote
Old 12-28-2011, 02:35 PM   #17
jje1960
Senior Member
 
Join Date: Nov 2010
Posts: 692
Grey tank level indicator

Quote:
Originally Posted by SteveC7010 View Post
There should be, but it sounds to me like the dealer did not do a good job of educating the owner in the function and operation of the systems in the trailer.
Our SRX has two tanks, kitchen and main, however we only have one indicator light.
__________________
2011 F350 DRW 4X4
"The Beast"
2011 Cougar 325 SRX
jje1960 is offline   Reply With Quote
Old 12-28-2011, 03:11 PM   #18
SteveC7010
Senior Member
 
SteveC7010's Avatar
 
Join Date: Sep 2011
Location: Northville NY in the Adirondacks
Posts: 2,128
Quote:
Originally Posted by jje1960 View Post
Our SRX has two tanks, kitchen and main, however we only have one indicator light.
Does it have separate buttons for each tank and just one set of indicator lights? My Sunline was that way with just one row of lights (full, 3/4, 1/2, 1/4, and empty) but had buttons for each tank: fresh, gray, and black.

(The Cougar is in storage so I can't look to be sure, but I think it is the same way: Gray, Galley, Black, Fresh, and Battery.)
__________________

'11 Cougar 326MKS loaded with mods
'12 Ford F250 SuperCab 6.7 PowerStroke Diesel
Amateur Radio: KD2IAT (146.520) GMRS: WQPG808 (462.675 TPL 141.3)
SteveC7010 is offline   Reply With Quote
Old 12-28-2011, 03:56 PM   #19
Hunter757
Senior Member
 
Join Date: Aug 2011
Location: Puyallup, Wa
Posts: 121
Mine reads the same and I have Grey, Black, Galley, Battery buttons on my Montana mountaineer. I have two grey water tanks one for the bathroom the other for the galley.
__________________


2008 F350 4x4 LB CC 6.4 twin turbo PSD
Prodigy P2 brake controler
Hijacker 16K Double pivot ultra
2007 Montana Mountaineer 307RK
New to us on 8/12/2011:
Hunter757 is offline   Reply With Quote
Old 10-01-2014, 07:02 AM   #20
jvclark02
Junior Member
 
Join Date: Jul 2014
Location: Grove Oklahoma
Posts: 1
I realize this is an old thread but wanted to thank everyone for their help. Been running snakes through all vents and pipes but island sink remained backed up. Thanks to you I found the 2nd tank drain lever between the two tires and better half is now happy with her new.... used Big SKy Montana
jvclark02 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by the Keystone RV Company or any of its affiliates in any way. Keystone RV® is a registered trademark of the Keystone RV Company.


All times are GMT -8. The time now is 07:19 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.