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Metal to PVC Fitting Question

Discussion in 'Homeowner Assistance Forum' started by wavve31, Jul 17, 2006.

  1. wavve31

    wavve31 LawnSite Member
    Posts: 1

    I need to replace a sprinkler system in an old house and the pipes coming out of the house to the new sprinklers values are metal. Is there anything special I need to do to get the metal and pvc fittings to fit together properly or should things to screw or slip together fine?

  2. Lumberjack

    Lumberjack LawnSite Member
    Posts: 180

    Metal and plastic expand and contract at different rates. usuallly a rubber go between peice is needed to prevent cracking.....
  3. Grassmechanic

    Grassmechanic LawnSite Silver Member
    Posts: 2,697

    PVC pipe needs to have male threads, metal pipe needs to have female threads. Not the other way around.

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