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05-28-2017, 02:14 PM
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#1
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Member
Join Date: May 2017
Location: Boise
Posts: 45
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Dumb question about dump valve(s)
On my "new to us" 2001 Montana Big Sky 3280RL I can only find one valve handle to drain my tank(s), the one right between the driver's side trailer wheels. Previous owner told me that was the valve to drain the "kitchen sink". So Is there another valve to dump the black water somewhere? On our last trailer, the black water valve was right next to the sewer pipe.
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05-28-2017, 02:29 PM
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#2
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Senior Member
Join Date: May 2016
Location: South Jordan, Utah
Posts: 2,228
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Don't know about your specific Montana, but if you look inside the basement hatch on the driver's side you should find the two dump valves you're looking for. Open the grey valve and you'll drain the bathroom grey tank, then the galley valve you already discovered and you'll drain the galley grey tank. Keystone has used this configuration (it's the same on our Cougar) on almost all their 5th wheels for years. Hope it helps.
__________________
2017 Cougar 279RKSWE
2007.5 Dodge Ram 2500 6.7 Cummins
Retirement Training Completed
I think the little voices in my head have started a chat group.
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05-28-2017, 04:24 PM
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#3
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Member
Join Date: May 2017
Location: Boise
Posts: 45
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Yep, right where you said they'd be. They were covered by a big bag of coiled sewer hose. (Insert sound of slapping forehead here.)
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05-28-2017, 05:21 PM
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#4
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Senior Member
Join Date: Feb 2016
Location: Post Falls
Posts: 424
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The only dumb question would be, do you hook up the sewer hose before pulling the handle.
__________________
Rick and Patti
both now happily retired
2002 Chevrolet Silverado LT 2500 HD
8.1 / Allison / Long bed / Crew Cab
2016 Keystone Cougar 284RDB
GOOOOO MONTANA STATE UNIVERSITY BOBCATS
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05-28-2017, 05:27 PM
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#5
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Member
Join Date: May 2017
Location: Boise
Posts: 45
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Good thing I checked that sewer hose before I did anything else. It was split in two places!
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05-28-2017, 05:37 PM
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#6
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Senior Member
Join Date: Mar 2014
Location: Eastern U.P. of Michigan
Posts: 237
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__________________
A rainy day campin' is better than a sunny day workin'.
'14 Montana High Country 305RL - Reese Goose Box - Morryde HD shackles & wet bolts - JoyRider shocks - JT StrongArms - Torklift steps - Correct Track - Progressive EMS-HW50C - Clear Source water filter - On The Go water softener
'21 Ram 3500 w/6.7 Cummins - Sinister Diesel oil bypass
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05-28-2017, 05:57 PM
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#7
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Member
Join Date: May 2017
Location: Boise
Posts: 45
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Fountains of Brown.
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05-28-2017, 06:17 PM
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#8
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Senior Member
Join Date: Mar 2014
Location: Eastern U.P. of Michigan
Posts: 237
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__________________
A rainy day campin' is better than a sunny day workin'.
'14 Montana High Country 305RL - Reese Goose Box - Morryde HD shackles & wet bolts - JoyRider shocks - JT StrongArms - Torklift steps - Correct Track - Progressive EMS-HW50C - Clear Source water filter - On The Go water softener
'21 Ram 3500 w/6.7 Cummins - Sinister Diesel oil bypass
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05-28-2017, 06:58 PM
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#9
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Senior Member
Join Date: Jul 2014
Location: Nevada
Posts: 2,695
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Quote:
Originally Posted by David T. MacNeill
Fountains of Brown.
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AKA a poonami.
__________________
Desert185 🇺🇸 (Retired Chemtrail vendor)
-Ram 2500 QC, LB, 4x4, Cummins HO/exhaust brake, 6-speed stick.
-Andersen Ultimate 24K 5er Hitch.
-2014 Cougar 326SRX, Maxxis tires w/TPMS, wet bolts, two 6v batts.
-Four Wheel 8' Popup Camper.
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05-28-2017, 08:05 PM
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#10
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,695
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"Aaannnddd, here we go, down that road again"....
I had some comments but I doubt they could do much to better illustrate our thoughts on this Having had my "poop chute" split last Jan. I can fully visualize what can/may happen . And, boys will be boys.....carry on
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05-29-2017, 06:41 AM
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#11
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Senior Member
Join Date: Mar 2017
Location: Bucks County, PA
Posts: 281
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Quote:
Originally Posted by msubobcats
The only dumb question would be, do you hook up the sewer hose before pulling the handle.
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Yes hook up sewer hoses before opening the dump valves. Once you open the dump valves everything behind them is heading out FAST!
Sent from my SM-T550 using Tapatalk
__________________
-- Mark
I used a multi-billion dollar government satellite navigation system to look for a rubber chicken in a tree!
2017 Bullet 248RKS towed by a 2011 Chevrolet Silverado 5.3L V8 W/ AFM
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05-30-2017, 06:02 PM
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#12
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Junior Member
Join Date: Mar 2014
Location: Arizona
Posts: 3
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A highly recommended addition - get the external valve that attaches to the end of the sewer outlet. I have a 'see thru' piece that is a bout 6 inches long with an external valve attached to that. That way I can see if there is any leakage in the normal valves. By the way, the normal valves seem to eventually stop working within 6 mo. to 2 or 3 years. And I don't like to get somewhere and not be able to close the black tank valve. This way there is a back up plan.
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