shutoff requirements

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by peltaz, Mar 21, 2009.

  1. peltaz

    peltaz New Member

    Joined:
    Nov 18, 2008
    If using a home run system with pex are individual shutoffs still required at each fixture if the manifold is easily accessable? What if a flow through manifold is used to connect say a sink and toilet on the same supply line?
    Thanks.
     
  2. nhmaster

    nhmaster Master Plumber

    Joined:
    Jul 30, 2008
    Occupation:
    Tech. Instructor
    Location:
    S. Maine
    Shutoffs are still required at the fixture. Manifold systems must be properly engineered for flow also. There are some very specific codes and requirements to installing home run systems.
     
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    manifold

    IF the manifold has individual valves for each connection AND it is properly labled then the fixture stops are not required. BUT this also means that the manifold is ALWAYS accessible, usually in an cabinet. Having an accessible manifold without valves does not provide any means of isolating a fixture so it would still require the stops at the fixture.
     
  5. nhmaster

    nhmaster Master Plumber

    Joined:
    Jul 30, 2008
    Occupation:
    Tech. Instructor
    Location:
    S. Maine
    HJ, I can't find that in the code. Not saying it ain't, just can't find the section. Are we looking at IPC or UPC?
     
  6. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    stops

    The valve at the manifold satisfies the requirement for individual shutoffs. ALL of the installations in this area with manifold valves have the tubing run directly out of the wall and to the faucets.
     
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