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