A professional who assists treater in processing petroleum products, such as gasoline, kerosene, oils, and wax, with chemicals, steam, water, or air to remove impurities, such as sulfur. Respnsibilities include:

• Examines pipelines and valves for leaks.
• Turns valves to charge equipment with product to be treated and to draw off water and spent chemicals after treatment and separation.
• Adds treating chemicals, such as sulfur and litharge, to product by turning valves or by dumping chemicals directly into equipment.
• Lubricates, adjusts, and performs minor maintenance on equipment and machinery as directed.
• May regulate pump speeds to control circulation of solution and product through unit.
• May gauge tanks with calibrated rod or tape to determine quantity of content.
• May make chemical, specific gravity, and color tests of product and treating solution to determine process conditions.
• May draw samples of product for laboratory analysis.
• Performs other duties as described under helper master title.