When to neck down pipe size

Discussion in 'Pumps and Tanks Well Forum & Blog. Water is life.' started by banjo bud, Oct 11, 2018.

  1. banjo bud

    banjo bud Member

    Joined:
    Sep 24, 2018
    Location:
    South Carolina
    I’ll have 1” PVC coming out of my pump. I am going to tie it into my existing county water line coming into my house. That line is 3/4” poly and is in my crawl space. My pump will be in my garage. Should I reduce to 3/4” right out of the pump? Or maybe just before the county line? Or somewhere in between. There will be maybe 6’ distance between pump and existing county pipe.
     
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    For a two bath home I use 1" pipe. The only time I've run 3/4" was for a one bath home.
     
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  4. banjo bud

    banjo bud Member

    Joined:
    Sep 24, 2018
    Location:
    South Carolina
    Well, there’s nothing I can do about the 3/4 that’s there. I guess I’ll run the 1” all the way to it. That’s the best I can do without replumbing the whole house. Thanks.
     
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