Back flow preventers

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Anne in Houston, May 27, 2013.

  1. Anne in Houston

    Anne in Houston New Member

    Messages:
    1
    Location:
    Houston, TX
    The gardener has removed all the back flow preventers on the hose bibs of my house. He tells me that they restrict the flow too much. I have told him that they prevent back flow. Okay, I am going to live with back flow, however, what really bothers me is that he is attaching timers directly to the bibs. When the timers shut off (with a click), sometimes the water pipes in the house make a hammering noise. Will my pipes eventually come apart? Thanks. Anne
  2. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,358
    Location:
    Yakima WA
    I would suggest you contact a professional sprinkler installation company to design a proper irrigation system. What you are using is quite primitive and without back flow protection, it is dangerous to your health. There are Federal laws regarding BF prevention, but unfortunately, some state ignore them. This endangers not only the individual household's health, but everyone using the water supply.
  3. Terry

    Terry Administrator Staff Member

    Messages:
    15,110
    Location:
    Bothell, Washington
    If have wants to run irrigation off of your household water, he will need to "add" backflow protection.
  4. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
    Your problem started when you hired a gardener to do plumbing work.

    John
  5. wjcandee

    wjcandee Wise One

    Messages:
    1,891
    Location:
    New York, NY
    Amen.

    But more specifically, I would point out to you that although you are now in violation of Federal law, and the chances that you are going to be cited for it are minimal, what is certainly true is that you will be the first victim of this violation.

    That is, the law is designed to protect the public water system as a whole, i.e. the public at large, from ingesting pesticides, fertilizer, etc., from your garden hoses or sprinkler system.

    However, when that gallon of Roundup or Atrazine or Chlorpyrifos gets sucked into your garden hose and back through your home water system towards the public water supply, what water system do you suppose it's going to end up in first? You got it, yours. Your shower, your dishwasher, your kitchen sink, your icemaker. "Mom, can I have a glass of Iced Roundup?" Yum.

    So, tell the hack moron to put the backflow preventers back on, or, better yet, get a local plumber to fix it right for you.
  6. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,797
    Location:
    Cave Creek, Arizona
    Depending on how he removed the BFPs he may have ruined the threads on the faucets. He is apparently doing a "quick and dirty" installation using battery powered valves without built in backflow prevention.
  7. Anne Osher

    Anne Osher New Member

    Messages:
    4
    Location:
    Houston TX
    I explained the situation to the gardener and he put all the back flow preventer back on the hose bibs. Thanks for all the help. Anne
  8. Anne Osher

    Anne Osher New Member

    Messages:
    4
    Location:
    Houston TX
    Back flow preventers have been reinstalled. Thanks. Anne
  9. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,358
    Location:
    Yakima WA
    You still have a primitive setup. A back flow should be in the main irrigation line and be certified annually by a licensed and certified inspector. Hose bib BF is a very low quality device and each one is subject to failure individually. You can not tell if the BF is working just by looking. I would again urge you to get a professionally designed watering system. If you can afford a gardener, you certainly should be able to afford to do this. OK, I've said my piece twice, and that's all folks. Free advice, take it or leave it.
  10. wjcandee

    wjcandee Wise One

    Messages:
    1,891
    Location:
    New York, NY
    Just out of curiosity...has the banging pipe noise stopped?
  11. Wet_Boots

    Wet_Boots Sprinkler Guy

    Messages:
    798
    Location:
    Metro NYC
    Texas has gotten somewhat strict about sprinkler systems, even to the point of labeling water over-spraying sidewalks a violation. Best to comply with the new rules, and let the gardener pull weeds and plant petunias, and keep his hands off the plumbing. :mad:
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