New shower valves and existing lines

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by Snets, Dec 22, 2008.

  1. Snets

    Snets New Member

    Messages:
    8
    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. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    I would return the Moen crap and trade it in for something decent.
  3. Snets

    Snets New Member

    Messages:
    8
    Sorry, I mistakenly thought this site might be able to help me with a plumbing project. Silly me.:confused:
  4. Redwood

    Redwood Master Plumber

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    7,452
    Location:
    Connecticut
    You would strap the pipes so they secure it in place.
  5. Snets

    Snets New Member

    Messages:
    8
    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. wtf.gif
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  7. kingsotall

    kingsotall Plunger/TurdPuncher

    I always assumed IPS = iron pipe size, Meaning a tapered thread.
  8. nhmaster

    nhmaster Master Plumber

    Messages:
    3,189
    Location:
    S. Maine
    Believe me... In a year or so you will appreciate my advice. :D


  9. 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.
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