A professional who tends chiller and centrifugal drier that crystallize diluted caustic soda solution and remove liquid from crystallized product. Respnsibilities include:

• Starts pump to transfer caustic soda solution and water into dilution tank and determines specific gravity of diluted solution, using hydrometer.
• Pumps solution through refrigerating unit and into chiller.
• Observes consistency of crystallized slurry flowing from chiller to centrifuge, and turns valves to regulate feed rate and maintain slurry at specified consistency.
• Tends centrifugal drier to remove liquid component of slurry.
• May turn valve to heat centrifuge unit if machine is so equipped.
• Inspects feed and outlet pipes of equipment and flushes lines, using hose, to prevent clogging.