Job Description:

• 1) Controls series of vats that boil tanbark, quebracho, chemicals, and water to prepare tanning solution: Weighs specified amounts of materials on scale and dumps them into vat.

• 2) Opens valves to admit water and steam into vat.

• 3) Adjusts steam valve to maintain solution at specified temperature.

• 4) Tests sample of solution for specific gravity, using hydrometer.

• 5) Adds materials to solution to obtain solution of specified gravity.

• 6) Starts pump to transfer solution from vat to storage tank.

• 7) May grind bark or wood, using grinding machine.