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01-04-2024, 09:33 AM
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#1
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Montana Fan
Join Date: Sep 2023
Location: Jacksonville
Posts: 250
M.O.C. #33285
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Winterizing
Went to winterize my 2021 Montana 3761fl. It’s different then my last keystone. This one has a connection for the antifreeze hose. I noticed there is a valve of some kind in the connection If you push on it it goes in I’m assuming it’s made so when the pump is turned on the antifreeze goes in it pushes the valve and allows it to flow through the lines. Can this valve be removed? When I winterized the unit it took forever to get any antifreeze to come out the faucets. Could hear pump running but nothing coming out. Had to go outside and pour antifreeze into the hose in order to get any to draw into the lines. Thinking the valve was not opening enough to allow it to flow. Any suggestions
__________________
Bob, Kay and our 3 pups Lily, Willis and Gizmo
Jacksonville, Nc
Retired LEO of 35 years enjoying life camping n fishing
2021 Montana 3761fl pulled with a 2022 F350 King Ranch
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01-04-2024, 10:14 AM
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#2
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Montana Fan
Join Date: Oct 2021
Location: Possum trot
Posts: 132
M.O.C. #29795
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There is 1 or 2 switches you have to turn .1 is marked winterize I think, but at the moment I can't remember what the other one is. Be sure to turn the water heater bypass switch to ON.
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01-04-2024, 11:20 AM
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#3
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,690
M.O.C. #4831
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I don't winterize but have read lots of Posts here from those that do. A Search will find lots of help.
As I recall, the most common solutions are to:
o - Add a washer to the inlet port connection to improve the seal.
o - Raise the container of anti-freeze above the level of the inlet of the winterize port.
o - Turn the screen filter around in the inlet port (I think this applies to winterizing but I may be wrong).
__________________
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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01-04-2024, 11:31 AM
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#4
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Montana Fan
Join Date: Dec 2022
Location: Hershey
Posts: 124
M.O.C. #32150
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Previous post is 100% on point. I do my own every year. Follow the above advice. It’s good to go
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01-05-2024, 01:16 AM
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#5
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Montana Master
Join Date: Oct 2019
Location: Jacksonville
Posts: 2,237
M.O.C. #25165
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Yeah, what Carl said. When you turn the screen filter around it presses inward on that backflow valve inside the connector and keeps it open so you can get suction.
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Robert & Diana McNeal
2019 Montana Legacy 3791RD 20th Anniversary Edition
2014 F350 4x4 6.7L SRW
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01-05-2024, 05:40 AM
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#6
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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exactly. Learned about the backflow valve after much frustration.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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01-05-2024, 08:17 AM
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#7
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Montana Fan
Join Date: Oct 2021
Location: Possum trot
Posts: 132
M.O.C. #29795
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I personally haven't heard about the screen trick. Although I don't have any trouble winterizing I may have to give it a try. Who knows that might make it even easier.
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01-05-2024, 09:18 AM
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#8
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,361
M.O.C. #6433
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Exactly what Carl said. Been there done that many times.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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01-05-2024, 09:37 AM
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#9
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Montana Fan
Join Date: Sep 2023
Location: Jacksonville
Posts: 250
M.O.C. #33285
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Thank you all
__________________
Bob, Kay and our 3 pups Lily, Willis and Gizmo
Jacksonville, Nc
Retired LEO of 35 years enjoying life camping n fishing
2021 Montana 3761fl pulled with a 2022 F350 King Ranch
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