A professional who tends equipment that crushes, filters, and separates embedded gold particles from materials, such as broken or scrapped clay, melted crucible, and waste water to reclaim gold for reuse. Responsibilities include:

• Fills bin of crusher with material to be processed, using shovel, and starts crusher to grind material into fine powder.
• Separates gold particles from powder, using special reciprocating table, agitation tank, thickener, and set of troughs.
• Turns valves and knobs and adds specified amounts of ingredients to waste water in tank.
• Moves switch to start precipitation process.