A professional who tends machine that sprays stain preservative on finished lumber to retard decay and excessive weathering. Respnsibilities include:

• Empties drums of stain into storage tank and turns valve to combine water with stain at specified ratio.
• Turns valve to pump staining solution into spray units, and turns dial to adjust spray on lumber passing on conveyor.
• Examines lumber to determine amount of solution being applied, and adjusts spray units to ensure adequate coverage while preventing excessive waste.
• Opens valves to switch to alternate tank when solution level is low.
• Cleans equipment and work area, using airhose, water hoses, and other cleaning aids.
• Records amount of stain preservative used.