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Thread: New Shower Valve

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  1. #1
    DIY Junior Member tommy7's Avatar
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    Default New Shower Valve

    Hey all. Thanks ahead of time for the help!

    I am trying to install a new shower valve and have had my difficulties.

    With each difficulty I have learned much, and now feel capable of doing the job. ( yea..right.)

    This was a new Moen shower valve a week agao. I have sweated and unsweated pipes a couple times.

    Now, that i am preparing to do it one final time (see "yea right" above).

    I have a couple questions...

    1. How well do i have to clean this valve?

    2. Can I have a corner so close to the valve? If so, do I sweat it on one step or two? Would I be better off putting an elbow in lower and allowing my self more room by the valve?


  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
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    A little Emory cloth to clean things up, then flux and solder it with no-lead solder.

    As long as the cartridge is out while soldering, it doesn't' matter how close the fittings are.

  3. #3
    DIY Junior Member tommy7's Avatar
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    Thanks Terry!

    Actually, it's this close together. If I put flux on both ends and run the solder down the middle, can I count on it sealing both?

    If there is a better way to do it, I'm game!




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    Forum Admin, Expert Plumber Terry's Avatar
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    You can also use a street 90 into the valve. What you have is doable too.

    The brass body needs to be hot enough to melt and pull the solder in. You can tap the solder onto the body to check your heating progress.

  5. #5
    Retired Defense Industry Engineer jadnashua's Avatar
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    Because the valve body is much more massive than the elbow, you'll need to apply the heat to the valve body more than the elbow, but you probably want them both to be hot enough to solder both at once. Don't overheat the elbow and not get the valve body hot enough - you need the solder to flow into both fittings.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  6. #6
    DIY Junior Member tommy7's Avatar
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    Thank guys! It aint pretty, but it soaked up a lot of solder.

    Last question. I want to plug up the elbow shower head joint so i can test it tomoorw. Do I just find a screw that fits it? Whats the common practice? I couldnt get any help at HD.


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