pex or copper for water main line??

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by chris fox, Jul 9, 2012.

  1. chris fox

    chris fox New Member

    Messages:
    150
    Location:
    near phoenix AZ
    Is using PEX worth the cost savings?
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,995
    Location:
    New England
    Is this from the street to the house? In the house? Some soils will eat copper quickly, don't know about your specific soil. If it's from the street, there are other plastic lines that can be used as well. A single piece of pipe is less likely to generate a leak verses one with multiple joints.
  3. Terry

    Terry Administrator Staff Member

    Messages:
    15,000
    Location:
    Bothell, Washington
    PEX is smaller then copper. So if you are running PEX as a water service, it would be a good idea to go up one size.
  4. chris fox

    chris fox New Member

    Messages:
    150
    Location:
    near phoenix AZ
    Its from street to house. I live in AZ - rocky soil.
    I am getting quotes for both, both about the same price.
  5. Terry

    Terry Administrator Staff Member

    Messages:
    15,000
    Location:
    Bothell, Washington
    Same price? I would get copper then.
  6. Tom Sawyer

    Tom Sawyer In the Trades

    Messages:
    3,172
    Location:
    Maine
    I would go with HDPE over either of them.
  7. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,995
    Location:
    New England
    Many municipal supplies use one form or another of plastic pipe...

    Depending on the water chemistry and the soil, plastic has its advantages. With any type of pipe, you'd want to bed it in sand to avoid any rocks.
  8. chris fox

    chris fox New Member

    Messages:
    150
    Location:
    near phoenix AZ
    I like the idea of sleeving the soft copper in 200 PVC pipe or similar.
  9. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,615
    Location:
    Cave Creek, Arizona
    I have done hundreds of copper service lines in Phoenix and area, but have NEVER sleeved them with anything. I have also NEVER used PEX for that purpose. Either I use soft copper for up to 100' or PVC for longer lines.
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