A public university has a four-celled, 6,000 gallon cooling tower with a recirculation rate of 4,800 gallons per minute. Scale, fouling, and bacteria activity were all issues under chemical treatment. Maintenance workers also objected to handling hazardous chemicals.

A CHC 80-GPM unit and filtration system were installed in July of 2001.

Customer blow down has been reduced by 75%. Chiller tubes which used to be brushed yearly no longer require cleaning.

Cycles of concentration increased from 2.0 to 3.3 with the CHC system. Annual water savings for the customer exceed 2.4 million gallons, with 1 million gallons of non-potable water available for reuse.