Job Description:

• 1) Tends equipment that mixes diatomaceous earth, milk of lime, and acid with liquors and syrups to form slurry for filtration process: Turns valves to regulate flow of slurries through series of blow-up tanks, and to maintain temperature, content level, and air agitation in tanks.

• 2) Adds milk of lime or phosphoric acid to slurry to obtain specified alkalinity.

• 3) Tests slurries for density, using refractometer, and adds liquor or diatomaceous earth to maintain specified density.

• 4) Tests samples of slurries to ascertain that specified purification is occurring.

• 5) Records operating data on forms or blackboard.

• 6) Prepares phosphoric acid solutions of specified concentration for use in filtration process.

• 7) Cleans blocked lines and blow-ups.