PEX branch for bathroom vs. individual lines off main branch

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by EthylOH, Apr 17, 2016.

  1. EthylOH

    EthylOH Member

    Joined:
    Dec 23, 2015
    Location:
    North Andover, Massachusetts
    Hi all,

    I'm about to run the PEX for my bathroom. I'm adapting from 1/2" copper main to a 3/4" PEX line.

    Will it make any difference if I run a branch off the main for my bathroom versus individual line off the main for each fixture?

    If I run a branch, I can get away with one set of shut-off valves for the whole bathroom (shower, tub, toilet, sink).

    I've added a pic to show what I mean.

    Thanks in advance.
     

    Attached Files:

    Last edited by a moderator: Apr 18, 2016
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Individual uses more length pipe and may be more work. Many run a "manifold" with many outputs, and many of those manifolds have individual shut-off valves for each tap.

    Individual will get hot water to come out of the shower sooner because the line has less cooled water to displace.

    For shutoffs, you want a shutoff right at the toilet and normally for the lavatory faucets, even if you have individual shutoffs
     
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