Requirements for Installing a Pressure Vacuum Breaker Device

  • Must be installed 12" above the highest piping in the system
    • This ensures that backpressure due to elevation is not created
  • The device cannot be installed more that five feet above ground
  • Must be installed in situations where the device will undergo continuous supply pressure for long periods
  • Can only be used as an isolation device, unless the device is installed on an irrigation system served by a separate service line