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05-09-2012, 05:09 AM
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#1
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Seasoned Camper
Join Date: Jan 2012
Location: Augusta
Posts: 67
M.O.C. #12146
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Black tank flusher
Is it normal for there to be pressure left when you go to disconnedt the hose? The flusher works well, it just seems that all pressure should be bled out by the time I disconnect.
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05-09-2012, 05:47 AM
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#2
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Montana Master
Join Date: Feb 2005
Location: Sioux Falls
Posts: 729
M.O.C. #3206
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The water hose is full of water when you unhook it- I always unhook at the faucet first so the hose will drain while I unhook and roll the hose for storage- JMHO- Don
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05-09-2012, 07:55 AM
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#3
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Montana Master
Join Date: Mar 2010
Location: Land O Lakes
Posts: 2,783
M.O.C. #10246
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Not sure, but think you might be dealing with water pressure built up between the nozzle input and a back flow restricter????
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05-09-2012, 09:46 AM
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#4
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Seasoned Camper
Join Date: Jan 2012
Location: Augusta
Posts: 67
M.O.C. #12146
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Quote:
quote:Originally posted by CamillaMichael
Not sure, but think you might be dealing with water pressure built up between the nozzle input and a back flow restricter????
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There must be a restriction someplace for the pressure to remain.
If I were to remove the panel in the storage bay would the back flow
preventer be easy to identify? Or would this be dealt with by dropping part of the belly pan?
Thank you for your assistance.
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05-09-2012, 09:58 AM
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#5
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Montana Master
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,707
M.O.C. #7992
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Michael and Camilla Robinson are spot on. The back flow preventer is in the system to keep black water/waste from backing up into the public water system. When you shut the water off you are going to have close to what the water pressure is out of the spigot until you relieve that pressure. I use the same procedure DonandJudy use. Not sure about your model but the only two places I have heard Keystone places the valve is either under the lavratory sink or in the wall behind the shower faucet. Jim
__________________
2006 3000RK
2009 Ram 2500
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05-09-2012, 01:17 PM
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#6
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Montana Master
Join Date: Nov 2009
Location: Wampum
Posts: 571
M.O.C. #9928
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My Monty has some pressure when I disconnect the hose. I just loosen the fitting and let the water drain some before I completely remove the hose. Remember it's the pressure that properly cleans the tank.
__________________
"What happens at camp stays at camp"
2018 3121RL
2016 Ford F350 SB SRW
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05-18-2012, 02:51 PM
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#7
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Montana Fan
Join Date: Oct 2006
Location: St Catharines
Posts: 176
M.O.C. #6415
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When I disconnect the hose from the flush connection in the convenience centre, water flows back out. I found that the check valve is not located at the connection but seems to be located somewhere upstream in the line. Don't know why as the check valve on the city water supply is located right at the connection point in the convenience centre.
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05-18-2012, 04:43 PM
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#8
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,172
M.O.C. #6433
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There is always pressure left on mine. When I unscrew the hose at the faucet, I have to do it slowly and let it spray out a little until the pressure drains off.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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05-18-2012, 05:10 PM
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#9
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Montana Master
Join Date: Nov 2003
Location: Santa Fe Springs
Posts: 4,189
M.O.C. #639
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I dont have any pressure in my flush lines at all. I do have a little of water thats left in the line to drain. but once it has reached the lowest part of the supply line it stops flowing. I would think that if you have water pressure after you turn the water off the back flow device is not working properly allowing it to vent, or your spray nozel has some hole blocked allowing the water to stay pressurised then it pops when unpluged. but it still goes back to the back flow device not working properly.
I also have a diferent system 2004 compaired to the newer Montanas and the master control system.
__________________
Pulling a 2004, 2980 RL an oldie but goodie.
Tow vehicle is a 2009 RED RAM 3500 DRW.
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