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08-23-2020, 09:39 PM
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#1
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Montana Fan
Join Date: Aug 2020
Location: Missoula
Posts: 136
M.O.C. #26938
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Grey Water does not close
The valve on my grey water tank will not close. The handle moves easily in and out, but valve does not close. How do i fix it.
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08-24-2020, 06:00 AM
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#2
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,137
M.O.C. #25165
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Sounds like maybe the cable has broken? You may need to replace.
__________________
Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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08-24-2020, 06:42 AM
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#3
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Look behind the convienence center and see if it's unhooked if not, you're going to have to drop the underbelly and see what's wrong. As stated above, the cable is probably disconnected or broken.
__________________
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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08-24-2020, 07:24 AM
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#4
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Montana Master
Join Date: Feb 2020
Location: Bencia
Posts: 538
M.O.C. #25828
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A couple of suggestions come to mind:
1. Fill the tank and flush several times.
2. Connect a reverse flush adapter to your dump line with a hose & backflush.
3. Fill the tank, add Zaal Noflex Digestor to liquefy sludge, then dump.
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08-24-2020, 08:42 AM
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#5
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,677
M.O.C. #24086
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Until you get it fixed, add a Valterra twist on gate valve. Helps prevent surprises too.
__________________
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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08-24-2020, 08:57 AM
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#6
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Montana Master
Join Date: Feb 2020
Location: Bencia
Posts: 538
M.O.C. #25828
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Quote:
Originally Posted by Daryles
Until you get it fixed, add a Valterra twist on gate valve. Helps prevent surprises too.
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Ditto Daryles!!.............I also have one installed. You can also get one with or without a hose flush connection like the Camco 39062 one in the link below.
https://www.amazon.com/Camco-Holding.../dp/B000BUQOAE
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08-29-2020, 05:07 AM
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#7
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Montana Fan
Join Date: Aug 2020
Location: Missoula
Posts: 136
M.O.C. #26938
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Replace valve
After following everyone's advice and testing all, the valve needs to be replaced. As with other posts the design of the system does not allow for easy replacement of the valves. Will use the saws-all method and a rubber sleeve that is recommended by other owners with the same problem. Unfortunately i can only replace one valve, as the pandemic has created a supply shortage on almost everything. Fortunately the black water valve seems to be working okay. The 3' sleeve needed is readily available at Lowe's or Home Depot. I am going to cut the gray water side as it is easier to get to.
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08-29-2020, 06:30 AM
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#8
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Montana Master
Join Date: Mar 2016
Location: Catoosa
Posts: 778
M.O.C. #18384
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Don’t let me stop you from hacking up your plumbing, but it’s not necessary to cut the pipe. You only need to pull it back about 1/4 inch after you unbolt the valve. A ratchet strap wrapped around the pipe and attached back to something solid will do the trick. Just don’t try to pull it too far.
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08-29-2020, 10:01 AM
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#9
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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Agree on not cutting any pipe. Take a second look. Also consider using valves that actuate by solid rods, not cables. The cables are an added maintenance issue and unreliable.
__________________
2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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08-29-2020, 02:13 PM
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#10
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,677
M.O.C. #24086
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Quote:
Originally Posted by Theunz
Don’t let me stop you from hacking up your plumbing, but it’s not necessary to cut the pipe. You only need to pull it back about 1/4 inch after you unbolt the valve. A ratchet strap wrapped around the pipe and attached back to something solid will do the trick. Just don’t try to pull it too far.
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Thanks for the pictures. Do you have any from a little further back?
I was wondering about strap supports under the tanks.
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08-29-2020, 04:24 PM
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#11
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Montana Fan
Join Date: Aug 2020
Location: Missoula
Posts: 136
M.O.C. #26938
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Grey water valve
I went ahead and cut the pipe which is no big deal. The rubber sleeve seals up fine. Put in a new Bristol valve, which was the same as the one i removed,and the gray water still doesn't shut off. Have no idea what to do next? Any ideas would be appreciated.
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08-29-2020, 05:36 PM
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#12
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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Do you have a seperate grey water tank for the kitchen? Is that drain valve closed? Which faucet are you using to test that new valve? A little more info would help.
__________________
2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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08-29-2020, 05:50 PM
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#13
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,657
M.O.C. #9969
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OP, you do realize that you most likely have TWO Gray tanks don't you??
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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08-29-2020, 05:59 PM
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#14
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Montana Master
Join Date: Mar 2016
Location: Catoosa
Posts: 778
M.O.C. #18384
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Quote:
Originally Posted by Daryles
Thanks for the pictures. Do you have any from a little further back?
I was wondering about strap supports under the tanks.
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This is the best picture of the tanks I have. If I remember right, the tanks are only held in by the flange around their edges. If I were to open it up again I would add additional support. There is angle bar under the coroplast, but there is a sizable gap between the bar and the tanks.
Sorry about the upside down photo.
__________________
2015 3100RL legacy...2005 Ford F-250 CC SB. Tows like a charm! 4/19 Updated to 2017 Chevy 3500 CC SB SRW -hope it tows as well as my F 250 did!
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08-31-2020, 05:33 AM
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#15
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Montana Fan
Join Date: Aug 2020
Location: Missoula
Posts: 136
M.O.C. #26938
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I did discover that i have two grey water tanks. The valve for the galley tank is located in a different location between the two axles. I am new to the RV world and am still learning. I had been testing the valve by running the kitchen sink. I discovered the drain pipe from the kitchen area and followed it back to the valve. Nothing in the manual about the location of the valve and previous owners didn't tell me about it.Thanks for your help.
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08-31-2020, 05:36 AM
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#16
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Montana Fan
Join Date: Aug 2020
Location: Missoula
Posts: 136
M.O.C. #26938
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I did discover the second tank by following the drain pipe for the kitchen area to find the valve. It is nicely hidden between the two axles. Nothing in the manual indicates the location of that valve. Previous owners didn't tell us about it. The valve i did replace was not in very good shape so nothing lost.
Thanks for your help.
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08-31-2020, 09:00 AM
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#17
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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Success! Thanks for letting us know how it ended.
__________________
2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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09-02-2020, 08:16 PM
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#18
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New Member
Join Date: Jul 2020
Location: lakewood
Posts: 3
M.O.C. #26587
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Quote:
Originally Posted by jwengermt
The valve on my grey water tank will not close. The handle moves easily in and out, but valve does not close. How do i fix it.
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https://www.amazon.com/Camco-39511-H...omotive&sr=1-4
Add this, until you fix it-- I have one anyway, so if any leaks while driving you dont get in trouble when hooking up--
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09-07-2020, 05:05 PM
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#19
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Seasoned Camper
Join Date: Sep 2020
Location: Artesia
Posts: 65
M.O.C. #27061
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Second gray water tank
Thanks for your post. Just found this site today trying to find out how to drain my 2nd gray water tank and got enough information from the reply’s that I found the valve right in front of my axels. Mine too were not marked and as my unit is used I didn’t get a manual. Plus as I just registered to the site I haven’t figured out how to post a question.
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09-07-2020, 05:21 PM
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#20
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Montana Fan
Join Date: Jun 2019
Location: new river
Posts: 413
M.O.C. #24181
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to post go up to forum pick a catagory and select new thread hope this helps
al meyer
3931fb
az
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