A professional who tends equipment that washes and reduces acidity of activated carbon, preparatory to drying. Respnsibilities include:

• Turns valves, couples hoses, and starts pumps to circulate carbon sludge through washing and blending tanks in specified timing and sequence.
• Admits prescribed amount of caustic soda into mixing tank or barrel to produce neutralizing solution of prescribed concentration.
• Starts agitators in blending tanks and opens valves to admit water, caustic solution, and steam to system as directed by wash operator.
• Takes samples of carbon sludge and wash solution to determine acidity, using titration test and conversion chart.
• Determines specific gravity of neutralized solution, using hydrometer, beaker, and siphon, and reports reading to system operator to facilitate process control.
• Measures depth of carbon sludge in tank, using calibrated rod or suction tube.
• Pumps washed and neutralized carbon to driers when test results indicate washing is completed.
• Records tank-level and specific gravity readings in shift log.
• Flushes tanks and lines with water hose, dismantling piping as necessary to remove caked deposits, using wrenches.