Change from 1/2 to 3/4 valve

Discussion in 'Shower & Bathtub Forum & Blog' started by Marty, Apr 7, 2005.

  1. Marty

    Marty New Member

    Apr 7, 2005
    I'm converting a bathtub to a shower only. The old valve is 1/2" but I'd like to install a 3/4" valve to improve water flow. Can this be done and will it make a difference or should I just stick to the 1/2" valve? The new shower unit will have a fixed riser and a handheld sprayer. The main pipes coming into the bath are 3/4".
    Thanks. :confused:
  2. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona

    Unless you are using special shower heads, they will be flow limited so the only advantage would be if it is also a tub filler in which case you would fill the tub faster.
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