Backflow Preventor or CheckValve Needed For Rain Barrel System?

Discussion in 'Pumps and Tanks Well Forum & Blog. Water is life.' started by gcxboxps, Feb 8, 2021.

  1. gcxboxps

    gcxboxps New Member

    Joined:
    Feb 8, 2021
    Location:
    TN
    I have a rain barrel system setup that has a transfer pump attached to the rain barrel that routes rain water through a PVC pipe to a spigot in my garden.
    I also have another water connection coming from my home's outdoor city water spigot that is connected to the same water line as the rain barrel.

    I also have 2 manual PVC shut off ball valves attached to the two water lines so that if I am pulling water from my rain barrel via the transfer pump, I will manually shut off the city water pvc ball valve, and vice versa if I am pulling water from the city water line.

    Currently, on the city water spigot attached to my home, I have a vacuum breaker installed, however, after reading more online, I believe another component (i.e. Check Valve / Backflow Preventor) may be needed?

    The goal here was that if my rain barrel was low on water, I could manually switch over and use my city water using the same spigot in my garden.

    Thanks
     
  2. Boycedrilling

    Boycedrilling In the Trades

    Joined:
    Sep 30, 2013
    Location:
    Royal City, WA
    Your city will have specific requirenents for yard irrigation. With city water. Check with them.
     
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  4. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    Never ever connect potable and nonpotable water without a backflow preventer or double check valve. As Boycedrilling suggest you need to call your water department on what they will require.
    [​IMG]
     
    valveman likes this.
  5. gcxboxps

    gcxboxps New Member

    Joined:
    Feb 8, 2021
    Location:
    TN
    Thanks for the feedback and recommendations.
     
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