Tapper Job Description:

Tends equipment that taps (drains) beer storage tanks to maintain continuous flow of beer to filtering machine: Couples hose lines to pumps, tanks, and filtering machine. Observes meters and turns valves on gas tank to admit specified amounts of carbon dioxide into storage tank to create effervescence in beer, and to apply external pressure on tank to counteract internal stress. Observes gauge to determine when to turn valves to switch from empty to full tank. Opens valve to release counter pressure on empty tanks and uncouples hoses.