A professional who tends tanks, absorption tower, and related equipment that produces cuprous chloride for use as process catalyst, as directed by cuprous-chloride operator. Respnsibilities include:

• Turns valves to transfer materials through auxiliary units, such as coolers, condensers, and absorbers, and to storage tanks.
• Assists cuprous-chloride operator in charging reaction tank with powdered copper.
• Records gauge readings and shift production for operating log.
• Patrols work area to detect and report malfunctions.