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Thread: New shower valves and existing lines

  1. #1

    Question New shower valves and existing lines

    I am remodeling a bath and the old shower has hot & cold 1/2" copper tubing supply lines.

    I purchased a vertical spa system and need to rough-in a Moen 3371 Thermostatic Valve and three Moen 3600 Volume Control Valves. All of the valves have 3/4" IPS connections.

    Also, it looks like the volume valves have no means to secure them to blocking so I assume you would secure the piping to the valves with clamps to some blocking.

    TIA

  2. #2
    Master Plumber nhmaster's Avatar
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    I would return the Moen crap and trade it in for something decent.

  3. #3

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    Sorry, I mistakenly thought this site might be able to help me with a plumbing project. Silly me.

  4. #4
    Master Plumber Redwood's Avatar
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    You would strap the pipes so they secure it in place.

  5. #5

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    Thanks, Redwood. That's what I assumed but wanted to hear. The 1/2" to 3/4" IPS I think will not be an issue because I think I can get new 3/4" copper into the location. I'm going to start a new post about that, it's a different topic.

    Not knowing that much about fittings available, do the fittings I need thread into the valves and then sweat onto the copper? I guess I'm confused because I'm not familiar with the "IPS" thread......It's just a straight pipe thread, right?

    Thanks again.

  6. #6
    Master Plumber Dunbar Plumbing's Avatar
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    .....







    Quote Originally Posted by snets View Post
    sorry, i mistakenly thought this site might be able to help me with a plumbing project. Silly me.




    Read what the end of this sentence means.

  7. #7
    Plunger/TurdPuncher kingsotall's Avatar
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    I always assumed IPS = iron pipe size, Meaning a tapered thread.

  8. #8
    Master Plumber nhmaster's Avatar
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    Believe me... In a year or so you will appreciate my advice.

  9. #9
    Master Plumber Dunbar Plumbing's Avatar
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    Quote Originally Posted by nhmaster View Post
    Believe me... In a year or so you will appreciate my advice.


    Yep, there's only 54 million threads about cartridges stuck solid that won't come out,


    tool broke, how do I get those black rubbers out?


    There's one time I pulled so damn hard I almost hit the back wall of the tub.

    If that valve isn't braced good, you can create more work pulling on those cartridges.
    Read what the end of this sentence means.

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