A professional who tests and inspects compressed air or oxygen regulators to detect air leaks. Responsibilities include:

• Clamps regulator unit into vise on stage above water tank and attaches compressed airhose to intake ports of regulator.
• Varies pressure of air flowing into regulator, using manual control, and turns regulator handles to determine that valves and pistons are functioning properly.
• Lowers regulator into tank of water, using power-driven foot pedal.
• Alters flow of air passing through unit and reads pressure gauges to determine points of high and low air release speeds.
• Inspects unit for air leaks, using brush to remove normal submersion bubbles.
• Releases foot pedal to raise regulator from water tank.
• Unclamps unit and places unit in tray.
• Marks malfunctioning areas of defective units, utilizing knowledge of components.