Bleeding Air from a DAF System

This instructional video shows how to properly bleed off air from an Dissolved Air Flotation (DAF) system. Operators will learn where the bleed-off valves are located and how to use them for safe, efficient operation.

Covered in this video:

• Locating bleed-off valves on the DAF unit

• Bleeding air from the distribution header

• Releasing trapped air from the underside of the air dissolving tube

• How both lines are routed to the effluent weir box for safe discharge of undissolved air into the clarified effluent

By following these steps, operators can prevent air buildup, improve system stability, and keep whitewater quality consistent for reliable solids separation.