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Thread: Anti Siphon

  1. #1
    Join Date
    Mar 2007
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    New Mexico
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    Default Anti Siphon

    Is this hydrant style of outside hose connection considered to be of the anti siphon type? I know they self drain below frost line, but I don't know about the anti siphon aspect.

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    Jim Robinson
    New Mexico, USA

  2. #2
    A.D. Miller's Avatar
    A.D. Miller Guest

    Default Re: Anti Siphon

    Quote Originally Posted by Jim Robinson View Post
    Is this hydrant style of outside hose connection considered to be of the anti siphon type? I know they self drain below frost line, but I don't know about the anti siphon aspect.
    JR: This appears to be what you have:

    Simmons Manufacturing

    It is not of the anti-siphon type, but could be with the simple addition of an anti-siphon collar. There is not enough detail in the photo to tell if one is installed.


  3. #3
    Join Date
    Mar 2007
    Location
    Plano, Texas
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    4,170

    Default Re: Anti Siphon

    I really like these for outdoor use but have often questioned their use due to contamination issues. Seems like it would need some sort of double check valve similar to irrigation systems.

    Jim Luttrall
    www.MrInspector.net
    Plano, Texas

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