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05-17-2018, 08:23 AM
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#1
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Montana Master
Join Date: May 2005
Location: Fall Creek
Posts: 1,329
M.O.C. #3699
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Water in the Belly
Here is my story. First no know problems with water system. Dumped tanks on Monday and rinsed the black very thoroughly for maybe 30 minutes or so. Primed black tank like I always do, checked sensors and everything look nice and empty.
Next day I went out and in the are where the black and gray tanks are the belly was bulging out and dripping! Took the convenience panel off and looked down toward the tanks and there was a huge puddle of water. I made a cut in the belly cover to drain it out. The water was clear, no blue, no cloudy from gray, just lots of clear water.
Looked under every sink for signs of leaking, nothing. I remember black tank flush issues. Had the wife turn on the black tank while I looked around the are behind and down in the belly, I really could not see anything. Then I went back up and looked at the back flush valve under the vanity and there as some water coming out and down. Right now we are using the water from the fresh water tank in the camper. I have a mobile tech coming out Saturday. What do you think is happening here?
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Bob and Nancy Kassl Fall Creek, Wisconsin
2015 Montana 3440RL Legacy Edition, G614's, Pressure Pro TPMS, Dish Tailgaters
2016 GMC Sierra Denali 3500 CC SRW, Iridium Metallic, Duramax Allison Transmission
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05-17-2018, 08:32 AM
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#2
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,369
M.O.C. #4831
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I say replace or remove (numerous posts on how to do this) the black tank check valve. The leakage runs down the Pex lines into the belly and likely is the source of the puddle.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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05-17-2018, 08:37 AM
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#3
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Montana Master
Join Date: May 2005
Location: Fall Creek
Posts: 1,329
M.O.C. #3699
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That dam valve sure can make a heck of a mess!!
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Bob and Nancy Kassl Fall Creek, Wisconsin
2015 Montana 3440RL Legacy Edition, G614's, Pressure Pro TPMS, Dish Tailgaters
2016 GMC Sierra Denali 3500 CC SRW, Iridium Metallic, Duramax Allison Transmission
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05-17-2018, 09:14 AM
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#4
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Montana Master
Join Date: Nov 2009
Location: Wampum
Posts: 571
M.O.C. #9928
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Yes, especially when a stink'n stink bug climbs inside!
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"What happens at camp stays at camp"
2018 3121RL
2016 Ford F350 SB SRW
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05-17-2018, 09:16 AM
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#5
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Montana Master
Join Date: Jul 2010
Location: Lake Havasu City AZ.
Posts: 1,811
M.O.C. #10552
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One of the first items I fixed was that usles valve. Cut the in line and out line before the valve installed a U turn fitting and by passed the valve. System works great and I don't have to worry about leaks.
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05-17-2018, 12:06 PM
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#6
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Montana Master
Join Date: May 2011
Location: Hixson
Posts: 3,436
M.O.C. #11397
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With ALL the above!
__________________
2018.5 Montana 3791RD
Full Timers 9/1/2010 through 1/16/2020.
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05-18-2018, 05:37 PM
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#7
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Montana Master
Join Date: May 2005
Location: Fall Creek
Posts: 1,329
M.O.C. #3699
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Had the Mobil tech out here today. It turned out to be that damn valve under the vanity in the bathroom. I was concerned about all the water in the belly, he said it was cumulative since we took the Monty out of storage. He replaced that black plastic valve with a brass one. We are finally fixed and feel pretty good about the work. So No more water in the belly!!
__________________
Bob and Nancy Kassl Fall Creek, Wisconsin
2015 Montana 3440RL Legacy Edition, G614's, Pressure Pro TPMS, Dish Tailgaters
2016 GMC Sierra Denali 3500 CC SRW, Iridium Metallic, Duramax Allison Transmission
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05-18-2018, 09:43 PM
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#8
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Montana Master
Join Date: Sep 2017
Location: Tacoma
Posts: 1,567
M.O.C. #20475
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Your lucky you didn't flud the bathroom when did the tank flush!
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Bob & Carol Washington St
2017 HC HM352RL 2018 Dodge 3500 laramie CC LB 4x4
Curt Q25 with puck system, Factory air bags
Happy Trails
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05-19-2018, 07:50 AM
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#9
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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We have not had a problem with either our 06 3400 or the 13 3402....... Lucky I guess.
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05-19-2018, 09:36 PM
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#10
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Glad this got posted. Had the parts to replace mine and had been putting it off. Took it out today.
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05-19-2018, 11:13 PM
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#11
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,953
M.O.C. #5651
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Mine was a plastic one under the sink. Was getting little spray from the tank flush. Took the valve apart and simply removed the little plastic ball inside. Works great now. Should use an external back flow preventer tho.
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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05-20-2018, 08:36 AM
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#12
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Montana Master
Join Date: May 2018
Location: livingston,tx
Posts: 558
M.O.C. #21685
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We had issues with ours also, I found if you turn the water on gradually it will not leak, although I always put a towel down just in case and keep an eye on it.
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