DEPENDING UPON DESIGN, every entity that operates a Heating, Ventilating, and Air Conditioning (HVAC) system for comfort heating or cooling purposes typically requires some form of water treatment. In addition, most processes which necessitate that heat is either added or rejected typically operate water-using equipment that must be protected via a water treatment program.

Metro's programs are custom-tailored to the specifications of individual systems and yield financial savings, longer equipment life, reduced systems maintenance requirements, and increased safety. Build-up of deposits can reduce heat transfer, leading to increased fuel use of up to 35%. In addition to being costly, deposits can be unsafe. They can restrict flows, promote failure, block intakes/outflows, or in cooling water, lead directly to the proliferation of undesirable bacteria such as Legionella, sp.