Kill lawn bugs with your hose, is it legal?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Terry, Aug 25, 2008.

  1. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington
    When I go to hardware stores, I see bug killers that work with garden hoses. Why are these legal?


    For outdoor use only. Harmful if swallowed. Causes moderate eye irritation. Avoid contact with eyes or clothing. Wash thoroughly with soap and water after handling.

    How to Use

    Connect: Shake well before using. Connect sprayer to hose. Turn on water. Spray:

    If they kill bugs, how safe are they for humans?
    Why are they for use with garden hoses that connect up to the public drinking supply?
    Why are stores selling them?
    Why are inspectors allowing their sale?
    Am I missing something here?
  2. Redwood

    Redwood Master Plumber

    Dec 15, 2007
    Service Plumber
    I believe that in this application one of these would be required.

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  4. maintenanceguy

    maintenanceguy In the Trades

    Aug 18, 2008
    In my state, pesticide regulations require an anti-syphon device for any hose that is used to mix or spray chemicals. The type of anti-syphon is not specified.
  5. eeplants

    eeplants New Member

    Aug 4, 2012
    I think that I need this to kill the bugs and the ant hill on my lawn.
  6. kreemoweet

    kreemoweet In the Trades

    Sep 7, 2009
    Seattle. WA
    Those garden hose sprayers have been around ever since there have been garden hoses. What's the problem? I've been drinking out of hoses for almost
    sixty years, and I ain't dead yet!
  7. Tom Sawyer

    Tom Sawyer In the Trades

    Nov 29, 2010
    This is an interesting question because I think that legally the companies that make these things have no obligation to adhere to plumbing codes however all sillcocks now require a vacuum breaker at the very least to offer some degree of back flow prevention however, pesticide and irrigation systems require an actual back flow preventer. You can ask the same question of the hose attached fertilization products also like Miracle Grow.
  8. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    The assumption, faulty as it is, is that the hose valve will have the mandated anti-siphon device attached to it. But, since the device works with an "aspirator" the material is NOT entering the water flow unless it is an "active" flow creating a Bornelli Effect at the nozzle, EXACTLY like a "post mix" paint gun.
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