A professional who tends machine that removes silver, copper, and paint from defective mirrors. Respnsibilities include:

• Weighs specified amount of caustic soda and pours into storage tank.
• Starts conveyor, washer, and drier unit and turns valves to admit water, acid, and caustic soda into spray pipes or tank.
• Places mirror on conveyor that carries mirror through caustic soda and water sprays, acid tank, and washing and drying units.
• Reads gauge and turns valve to regulate temperature to prevent soda from boiling over.