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  1. #1
    K. Smith's Avatar
    K. Smith Guest

    Default Irrigation System Pipes

    If a galvanized steel pipe needs to be replaced in an irrigation system, should it be replaced with galvanized steel pipe or PVC? The pipe would be above ground, exposed to sun. Please provide reason(s) for answer.

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  2. #2
    James Duffin's Avatar
    James Duffin Guest

    Default Re: Irrigation System Pipes

    I would think that the pipe in question is supporting a back-flow device so I would say the type of pipe used will depend on how the back-flow device is supported. I see lots of back-flows supported by PVC but they are small 3/4" devices. A larger, heavier device may need a metal pipe for support.


  3. #3
    Join Date
    Mar 2007
    Location
    Atlanta, Georgia
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    Default Re: Irrigation System Pipes

    Technically, PVC is not approved for UV exposure.

    "The Code is not a peak to reach but a foundation to build from."

  4. #4
    K. Smith's Avatar
    K. Smith Guest

    Default Re: Irrigation System Pipes

    Can brownline UV resistant PVC be used? If so, estimate of how long it would last if exposed to sunlight? Thanks!


  5. #5

    Default Re: Irrigation System Pipes

    You can always cover the exposed PVC, there are many coatings as well as paints available for this type of pipe.

    Jeff Zehnder - Home Inspector, Raleigh, NC
    http://www.jjeffzehnder.com/
    http://carolinahomeinspections.com/

  6. #6
    James Duffin's Avatar
    James Duffin Guest

    Default Re: Irrigation System Pipes

    The ones I see are normally in hot boxes to help prevent freezing. This also protects the pipe from the sun.


  7. #7
    DANIEL SNYDER's Avatar
    DANIEL SNYDER Guest

    Default Re: Irrigation System Pipes

    You can also use aluminum cladding to protect the PVC from UV light. This is normally done to protect insulated refrigeration lines. You should be able to find the aluminum at a refrigeration distributor.


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