A professional who operates scouring train (series of tanks or bowls) to wash, rinse, and dry raw wool preparatory to dyeing or carding. Respnsibilities include:

• Turns valves to start continuous flow of water, detergent, and acid into bowls.
• Reads thermometer and turns steam valves to heat wash and rinse solutions to specified operating temperature.
• Starts machine that feeds raw wool from hopper into washbowl and activates rakes that move wool through bowls to squeeze rolls and rinse bowl.
• Patrols scouring train to detect choke-up at squeeze rolls and removes jammed fibers by hand.
• Observes sudsing in washbowls and turns valve to increase or decrease concentration of detergent.
• Tests acidity of solution in finishing bowl by titration.
• Turns valve to control flow of acid to maintain specified concentration.
• Starts fans that circulate hot air in drier.
• Feels wool delivered from drier and adjusts thermostatic control if wool is not dry.
• Drains and cleans machine.
• May feed raw wool into scouring machine hopper.
• May direct activities of team workers and be designated Scouring-Train Operator, Chief.