A professional who supervises and coordinates activities of workers engaged in tapping molten aluminum from reduction pots. Respnsibilities include:

• Inserts metal rod into pots and inspects coating deposited on rod to determine amount of metal to tap.
• Moves hand controls to raise and lower anode and to control voltage drop in pot during tapping.
• Records pot number on outside of crucible, using chalk.
• Performs other duties as described under supervisor master title.