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08-09-2011, 08:44 AM
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#1
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New Member
Join Date: Aug 2011
Location: Gilbert
Posts: 4
M.O.C. #11643
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Back flush of Black Water Tank
Hi,
We are on the road and my back flush in the black water tank will not let water go into the tank.
Has anyone had a similar problem?
Festus
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08-09-2011, 08:56 AM
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#2
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,708
M.O.C. #7992
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Many have reported the check valve goes bad. In my unit it is under the lav. sink. In other units it is in the wall behind the shower faucet. If you can find yours just bypass it to see if that is the issue. Jim
__________________
2006 3000RK
2009 Ram 2500
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08-09-2011, 11:45 AM
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#3
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Montana Master
Join Date: Nov 2002
Location: Oceanside
Posts: 20,028
M.O.C. #20
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Festus, tell us which year and model you have and one of us can probably tell you where to find that check valve.
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08-09-2011, 01:08 PM
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#4
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Montana Master
Join Date: Feb 2010
Location: Shipman
Posts: 552
M.O.C. #10136
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Had same problem....reroute it from under the kitchen sink ti behind the basement wall...added a cut off valve on the outside in the command center...works just fine....hook up the hose...turn on the water ...open the valve and flush away...cut off valve before turning off water...no problem...the check valve is hard to get to and not easily taken apart....we just cut it all out and rerouted it...
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08-09-2011, 05:20 PM
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#5
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Montana Master
Join Date: Jul 2007
Location: Dillon KOA
Posts: 1,291
M.O.C. #7445
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We are having the same problem with our back flush in the black water tank. Would anyone know where the check valve is on a 2007 3585SA? And would that valve have anything to do with our not being able to disconnect the fresh water hose from either the outside faucet or the convenience center unless we open a faucet in the rig first (which apparently bleeds off the pressure, allowing us to finally disconnect the hose)?
Carolyn
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08-09-2011, 06:17 PM
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#6
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Montana Master
Join Date: Nov 2004
Location: Oak Harbor
Posts: 1,530
M.O.C. #2471
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Does anyone know where the valve is located on a 3455SA? I would like to replace it with one of the brass valves before it fails. Thanks in advance.
Jack
__________________
Previous:2004 Mountaineer 325FKBS,2010 Montana 3455SA Now:2018 Bighorn 3575EL (SOB's ) Res. Fridge,W/D,Disc Brakes,Water Softener,Dish Tailgater PRO,LioN Batts, several mods.
2021 RAM 3500 Laramie.... "LOADED", 4x4, SB H.O. 6.7L, Aisin Trans, PullRite Super Glide Hitch, 52 Gallon Titan Fuel Tank.
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08-09-2011, 06:26 PM
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#7
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Montana Master
Join Date: Jun 2007
Location: Eastern
Posts: 1,155
M.O.C. #7270
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I have had that problem with mine off and on. if I am somewhere with alot of water press it will start working again and keep on unless I don't use it for awhile. and when its running I can hear it behind the shower so atleast I know where mine is I just don't want to go in there to fix it.
Bobby
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08-09-2011, 07:09 PM
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#8
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Montana Fan
Join Date: Feb 2007
Location: Valencia
Posts: 207
M.O.C. #6835
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Mine was bad from the factory (Feb 2011). The dealer replaced the inexpensive plastic one with a brass unit (I happily paid the $27 for the upgraded part). The valve was behind the shower. The tech took off the shower bottom faucet panel and reached up to get to the valve. Works great now. Apparently, this is a very common problem.
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08-10-2011, 12:50 AM
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#9
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Montana Master
Join Date: Nov 2002
Location: Oceanside
Posts: 20,028
M.O.C. #20
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Haven't seen any replies to where it's located so will mention the two I know.
On our 2003 3295RK it was under the bathroom sink.
In our 2007 3400RL it's behind the pantry wall, between pantry and shower. In the pantry is an access panel stuck on with two-sided tape. However, the hole and panel are in the wrong place. I could see the valve through that hole but had to enlarge the hole to get to the valve.
Here is what it looks like.
This one is in the 2007 3400RL
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08-10-2011, 05:59 PM
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#10
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Montana Master
Join Date: Nov 2004
Location: Oak Harbor
Posts: 1,530
M.O.C. #2471
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Quote:
quote:Originally posted by BrokenElbow
Mine was bad from the factory (Feb 2011). The dealer replaced the inexpensive plastic one with a brass unit (I happily paid the $27 for the upgraded part). The valve was behind the shower. The tech took off the shower bottom faucet panel and reached up to get to the valve. Works great now. Apparently, this is a very common problem.
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BrokenElbow,
Thanks for the info for the 3455SA.
r,
Jack
__________________
Previous:2004 Mountaineer 325FKBS,2010 Montana 3455SA Now:2018 Bighorn 3575EL (SOB's ) Res. Fridge,W/D,Disc Brakes,Water Softener,Dish Tailgater PRO,LioN Batts, several mods.
2021 RAM 3500 Laramie.... "LOADED", 4x4, SB H.O. 6.7L, Aisin Trans, PullRite Super Glide Hitch, 52 Gallon Titan Fuel Tank.
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08-16-2011, 06:13 AM
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#11
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New Member
Join Date: Aug 2011
Location: Gilbert
Posts: 4
M.O.C. #11643
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Thanks to all on my Black water tank flush.
I can now researce the location and getter done!
Festus
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09-14-2011, 04:51 AM
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#12
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Established Member
Join Date: Sep 2010
Location: Mountain Home
Posts: 10
M.O.C. #10733
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What would happen if the check valve was removed? Please send me answer.
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