Cooling Tower Water Treatment

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Maximize the efficiency, reliability and safety of your cooling tower water treatment system from NCH Chem-Aqua.

The function of a cooling system is to remove heat from processes or equipment. Water, heated as a result of this, is then either discharged at the increased temperature into a receiving body (once-through cooling system) or it can be cooled and reused (recirculating – open or closed – system).


Our solutions are designed to maximize the life of your cooling water system while keeping energy, water and maintenance costs to a minimum, protecting your cooling water systems from:

  • Corrosion – preventing corrosion is crucial to avoiding the premature deterioration of your cooling tower. Corrosion affects the efficiency of the equipment and, over time, can lead to complete system failure.

  • Scale and deposits – efficiency of the heat transfer in your cooling system is compromised by the build-up of scale and deposits, which can cause problems with corrosion within the system.

  • Microbiological growth – microorganisms build up in cooling systems causing a number of problems, including slime and fouling. In some cases, bacterial growth can lead to health risks.

  • Legionella – The growth of the harmful Legionella bacteria is common in cooling towers, as they provide the ideal conditions for it to survive and multiply. It is crucial to prevent legionella in cooling towers, particularly in facilities where many people can be affected such as hospitals, hotels and schools.


NCH Chem-Aqua provides innovative and effective water treatment technology for all types of cooling system designs and applications including:

  • Open recirculating systems – cooling towers, evaporative condensers and fluid coolers.
  • Closed loops – chilled water, process loops and thermal storage systems
  • Once through systems

Our solutions for cooling systems include solid water treatment and Legionella risk reduction programs.

Effective water treatment is an essential part of the preventative maintenance program for a cooling water system. System repairs or replacements are costly and can be avoided with regular maintenance. Get in touch with NCH Chem-Aqua for expert cooling tower water treatment solutions.

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