BACKFLOW

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    • 3 Mar 2005 at 9:51 pm #279743
      Avatar photoJohn Watson
      Member

      Aquaticou.
      Please give your thaughts on the following scenario.

      1. Residential unit development.
      2. Subsoil or sub Mulch micro spray irrigation.
      3. controlled by computer opperated solenoid valves.
      4. Council footpath area 4m wide w/pop ups at
      footpath edge spraying towards boundary, controlled
      by computer opperated sollenoid valves.

      What type System??
      What type protection???

      Regards Bob

    • 27 Mar 2005 at 12:04 am #301592
      Avatar photoBender
      Participant

      I am thinking a pressure vacume breaker would be sufficient…

    • 27 Mar 2005 at 11:49 am #301593
      Avatar photoRetired plbg1
      Participant

      I ewould say a RPBP should be used are a good Vac Breaker.


      Art retired plbg

    • 1 Jul 2005 at 10:14 pm #301594
      Avatar photoAKPlumber
      Participant

      Sub-soil micro spray irrigation?

      COMPUTER operated solenoids?

      Good grief.

    • 20 Jul 2005 at 9:41 pm #301595
      Avatar photoRobert Stephen Morton
      Participant

      Yeah, my thaughts exactly, I reccomended a RPZD.
      Bob

    • 6 Jan 2006 at 12:18 pm #301596
      Avatar photohappiness_au1
      Participant

      I would use a pressure vacuum breaker or RPZ valve


      Duncan

    • 18 Jan 2006 at 2:59 pm #301597
      Avatar photoPLUMBILL
      Participant

      Only an RPZ valve for full protction, pressure vacuum breaker would not meet the requirements if you have elevation differences.

      We always question the Degree of Danger, what would determine the best backflow protection method.

      We had a job like yours where we used a air gap over a water tank with a pump that supplied the water needs of a nursey and then they mixed all the chemicals they wanted to with no problem with backflow or yearly backflow maintence.

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