A professional who operates sweater tank to separate liquid from slack wax (processed paraffin distillate). Respnsibilities include:

• Pumps charge of slack wax into sweater tank.
• Opens valves to circulate cold water through sweater to cool slack wax.
• Opens and closes steam valves and reads temperature gauges to sweat (heat) cooled wax at specified temperature levels for specified periods.
• Turns valves to divert cuts (waxes of different boiling points and specific gravities) to storage tank after completion of each run.
• Takes samples and observes melting point of each cut at regular intervals.
• Opens valves to admit steam into sweater tank to melt wax residue when run is completed.
• Drains melted wax residue from sweater into storage tank.