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Determining valve size for shower control


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  • Determining valve size for shower control

    Hi, Folks.

    My wife is trying to buy new volume / heat controls for the shower (we're having it ripped out and a new one put in). We are responsible for buying all the materials. She is looking online at various fixtures and there are choices for sizes - 1/2" and 3/4". I believe that 1/2" is the most common but how I do know for sure what to get without ripping the current fixtures out? Is it as simple as removing the pipe that attaches to the shower head and using that as a guide?

    Thanks, Max

  • #2
    More than likely you have 1/2" supplies to the mixer.
    You would open the wall to tell for sure.

    The 3/4" ones tend to be newer high performance multiple head shower systems.
    I stayed at a Holiday Inn Express last night.
    Now I can Plumb!

    For great information on the history of sanitary sewers including the use of Redwood Pipe
    Did you know some Redwood Pipe is still in service today.


    • #3
      Thanks for the reply!

      The wall will be getting ripped out but I was hoping there might be a way to tell before we get to that stage.

      I'm going to assume it's 1/2" since that is the most common. If my wife wants a unit that has both sizes then I think we will buy one of each and return the one that doesn't fit.

      Cheers, Max