We are scientists - professional Chemists and Chemical Engineers who partner with school district plant managers. Together we manage science-based monitoring and treatment programs which maintain HVAC system water chemistries within ranges that minimize scaling and corrosion. The benefits are efficient operation, long equipment life with few repairs.

As professionals, we subscribe to the ethics of the Engineer's Creed.
As scientists, we recommend science-based Protective Chemistries for HVAC Water Systems.
The essential: Uninterrupted Professional Supervision
A few thoughts on Commissioned Chemical Sales


 M e m b e r s

Richard Kunz, chemist, ltd. Closed Systems Laboratories, Inc.
1816 North Cascade Avenue
Colorado Springs CO 80907
719 635-1325


6602 Sutton Road
Madison WI 53711
608 213-9328