Rain shower copper size

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by crabapplemcn, Nov 8, 2008.

  1. crabapplemcn

    crabapplemcn New Member

    Oct 29, 2008
    I am building a new home and 1/2" copper is the standard line to the shower. If I wanted to make sure I get really good water pressure, would moving up to a 3/4" line help or is the flow restricted by the showerhead. The rain shower head I was interested in has a 2.5 gpm flow rate. Thanks
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    A 1/2" supply can safely flow about 6-7 gallons/min depending on the supply pressure, so if this is the only head running, should have as much flow as the restrictor in the showerhead will allow.
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  4. Redwood

    Redwood Master Plumber

    Dec 15, 2007
    Service Plumber
    Rainshower heads typically don't have lots of pressure rather the water falls out kinda like a rain shower...
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