How To Replace A Bonnet And Poppet

Backflow - Parts and Components

Duration: Estimated at 15 minutes

Don't know if you should replace your entire backflow device or just the parts? Maybe you want to know what parts to buy for your existing backflow device? Or even would like watch a video that teaches you exactly how to repair your backflow device? If you have questions like the above, please choose from one of the following buttons:

Shut off bottom valve handle. Turn to right.

Remove all broken plastic parts from inside the device.

• Unscrew plastic bonnet

• Remove any broken pieces from the inside

• There should not be ANY plastic pieces remaining inside device

• DO NOT mess with metal piece at bottom inside the device as it has a spring below it that would hurt you.

Screw in new bonnet / poppet kit (Hand Tight ONLY).

• Place bell on top of metal screw and tighten small nut just enough to hold the metal bell on the device and still rotate by hand with some tension.
  

  DO NOT OVERTIGHTEN!
• Cover device with a blanket if freezing temperatures persist.

Pressure Vacuum Breaker
Double Check Assembly
Reduced Pressure Assembly

Pressure Vacuum Breaker
Double Check Assembly
Reduced Pressure Assembly

Pressure Vacuum Breaker
Double Check Assembly
Reduced Pressure Assembly