A professional who tends equipment to remove impurities from water used in manufacturing pharmaceuticals and toilet preparations. Respnsibilities include:

• Starts pumps and turns valves to regulate flow of water into ion-exchanger to remove impurities such as magnesium and calcium.
• Activates electronic particle-detection devices to indicate level of impurities in treated water and automatically shut down system when impurities reach undesirable level, indicating need to regenerate system.
• Pumps water through tanks to flush system preparatory to regeneration.
• Circulates caustic solution through ion-exchanger to remove impurities from synthetic resins.
• Pumps water through system to rinse resin beds to remove caustic solution.
• Observes operation of pump units and pipe systems to detect leaks or mechanical defects.
• May tend water softener and demineralizing units to provide purified water for chemical process systems.