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08-29-2022, 02:49 PM
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#1
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Junior Member
Join Date: Aug 2022
Posts: 13
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1900mmk water heater location
I have a 2021 Alta East To West 1900MMK. Can anyone tell me where my hot water heater bypass and shutoffs are located for winterizing. Thank you.
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08-29-2022, 02:55 PM
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#2
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Senior Member
Join Date: Jul 2017
Posts: 4,057
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Quote:
Originally Posted by wildwanders
I have a 2021 Alta East To West 1900MMK. Can anyone tell me where my hot water heater bypass and shutoffs are located for winterizing. Thank you.
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From what i found with your model Water heater in in back of unit so you should find the bypasses under fridge behind panel
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08-29-2022, 03:20 PM
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#3
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Junior Member
Join Date: Aug 2022
Posts: 13
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Thank you, thats where the valves were, except there is no bypass valve, also the vavles are in the off position but I had hot water in my shower this summer. The trailer was new and I flushed the lines myself ffrom the "winterize". So the valve must not work?
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08-29-2022, 03:26 PM
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#4
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Senior Member
Join Date: Jun 2021
Location: Central coast Calif.
Posts: 728
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Can you post a picture of the valves? Something doesn’t sound right.
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Cross-threading works better than blue loctite.
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08-29-2022, 04:33 PM
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#5
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Junior Member
Join Date: Aug 2022
Posts: 13
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Sorry, they dont let me post a pic, uinless they make it so difficult I cannot figure it out. . Thank you for trying to help me out. There is the hot water valve at the top and the cold at the bottom with both valves closed. I just came across some pics of this, others have had the same issues.
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08-29-2022, 04:45 PM
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#6
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Junior Member
Join Date: Aug 2022
Posts: 13
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Seems it is a 2 valve system now, with the valves turned towards the tank for normal operation and in the same direction as the water flow for winterizing. Backwards from any other plumbing I have seen. Thanks again.
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08-29-2022, 04:52 PM
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#7
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Site Team
Join Date: Nov 2010
Location: Northeast Louisiana
Posts: 33,964
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Quote:
Originally Posted by wildwanders
Seems it is a 2 valve system now, with the valves turned towards the tank for normal operation and in the same direction as the water flow for winterizing. Backwards from any other plumbing I have seen. Thanks again.
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This system is explained in the thread we keep as a sticky in the plumbing subsection here:
https://www.forestriverforums.com/fo...ml#post1826511
__________________
 2011 Flagstaff 831 RLBSS
A 72 hour hold in a psych unit is beginning to intrigue me as a potential vacation opportunity.
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08-29-2022, 05:17 PM
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#8
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Site Team
Join Date: Sep 2014
Location: Northen IL
Posts: 8,337
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Quote:
Originally Posted by wildwanders
Sorry, they dont let me post a pic, uinless they make it so difficult I cannot figure it out. .
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See instructions here:
https://www.forestriverforums.com/fo...html#post49621
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08-29-2022, 05:58 PM
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#9
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Senior Member
Join Date: Jan 2020
Posts: 4,866
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Quote:
Originally Posted by wildwanders
Seems it is a 2 valve system now, with the valves turned towards the tank for normal operation and in the same direction as the water flow for winterizing. Backwards from any other plumbing I have seen. Thanks again.
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That is the standard way that all 3-way diverter valves work - water flow follows the handle.
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08-30-2022, 02:10 PM
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#10
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Senior Member
Join Date: Jan 2018
Location: Raleigh, NC
Posts: 9,622
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Yes they do.
Quote:
Originally Posted by wildwanders
Sorry, they dont let me post a pic, uinless they make it so difficult I cannot figure it out. . Thank you for trying to help me out. There is the hot water valve at the top and the cold at the bottom with both valves closed. I just came across some pics of this, others have had the same issues.
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"They" do let you post a picture.
Did you try clicking the paper-clip icon at the top of the editor? (Answer Yes or No)
Did you try clicking the "Manage Attachments" button below the editor window, where it says "Attach Files"? (Answer Yes or No)
Both of these options do the same thing.
__________________
Larry
"Everybody's RV is not like your RV."
"Always take pictures with the button on the right."
"Always bypass the water heater before opening the low-point drains."
Sticks and Bricks: Raleigh, NC
2008 Cherokee 38P: at Ivor, VA permanently
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08-30-2022, 02:13 PM
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#11
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,855
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Quote:
Originally Posted by wildwanders
Sorry, they dont let me post a pic, uinless they make it so difficult I cannot figure it out. . Thank you for trying to help me out. There is the hot water valve at the top and the cold at the bottom with both valves closed. I just came across some pics of this, others have had the same issues.
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Did you read the Welcome Letter that was PM'd to you? It will direct you where you can get instructions on posting pics.
If you're using the green FRF app, it's super simple to post pics.
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08-30-2022, 03:12 PM
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#12
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Senior Member
Join Date: May 2020
Location: Right in the Middle
Posts: 1,254
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Quote:
Originally Posted by wildwanders
Seems it is a 2 valve system now, with the valves turned towards the tank for normal operation and in the same direction as the water flow for winterizing. Backwards from any other plumbing I have seen. Thanks again.
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You might be thinking of the valves as one way ball valves (handle in line with water line for open/operation, handle perpendicular to flow for off/closed).
The new 2-valve systems take a similar approach, but - as you discovered - the valve handle now points in the direction of flow: at the water heater for normal operation, inline with the water line for bypass. This sort of valve isn't as intuitive because it's not "ON" or "OFF" - it's water "TURN 90°"*or "GO STRAIGHT".
Before, we had three-valve H-systems, with on/off valves (easier to understand).
Now, there's two valve U-systems, with slightly more complicated valves (simpler to plumb AND cheaper)
For what it's worth, there's also one valve systems on residential style trailers, but those are different animals.
Hope this helps.
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09-06-2022, 05:37 PM
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#13
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Junior Member
Join Date: Mar 2018
Posts: 11
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The valves are located in the wet bay in the front storage area. You have to remove the bump out cover
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