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Thread: Residential Water Line 1200'

  1. #1
    DIY Junior Member
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    Default Residential Water Line 1200'

    I need to install a 1200' service line from the meter for a new home that we are building. Not much, if any, change in elevation in that distance. I have several questions and would appreciate any advice. Thanks!
    1) Size and type of pipe? I have installed plenty of PEX inside homes but have never done a service line. 3/4", 1", or larger to reduce friction loss? Obviously don't want to spend more for larger pipe for little or no benefit. I don't anticipate rocky soil, but would the cost for smooth gravel, sand, or sleeving be worthwhile to protect the pipe underground?
    2) Utility has offered a 5/8" meter. Is there any benefit to requesting a 1" meter? I think that would only help with volume, not pressure?
    3) Should I install disconnects every few hundred feet to help locate and repair any future leaks?

  2. #2
    DIY Senior Member DougB's Avatar
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    http://www.engineeringtoolbox.com/pr...pes-d_404.html

    I'm not a well driller, just an engineer. That's a long run 1/5 of a mile. No reason to guess - get a pro to size this.
    If a hammer won't fix it, it's an electrical problem.

  3. #3
    Forum Admin, Expert Plumber Terry's Avatar
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    Water pipe sizing

    The link is just a partial chart, and I can't see you using less than 1.5", and maybe 2.0" would be better.

    Last edited by Terry; 06-22-2013 at 11:08 AM.

  4. #4
    Moderator & Master Plumber hj's Avatar
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    Default pipe

    I might consider 1 1/2" polyethylene because it comes in 500' rolls.
    Licensed residential and commercial plumber

  5. #5
    Retired Defense Industry Engineer jadnashua's Avatar
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    Friction is your enemy here...larger is better.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  6. #6
    DIY Senior Member craigpump's Avatar
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    I think Oli Creek makes 2" in 1000' rolls, yep it's gonna be a pain to work with. I would someone who does geo thermal work to fuse on transitions that go from the poly to pipe thread, especially in the trench.

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