Algae and Odor in Your Cooling Tower? Isothiazolinone Keeps Microbes Under Control

An open cooling tower is like a natural petri dish — once sunlight, warm water, and dust come together, bacteria and algae multiply wildly, lightly clogging fill media and worsening water quality, or at worst producing biofilm that corrodes equipment. Isothiazolinone (CMIT/MIT) is a broad-spectrum, highly effective non-oxidizing biocide that kills and inhibits bacteria, fungi, and algae, with good compatibility with other water-treatment chemicals, low dosage, and fast action.

In routine recirculating-water maintenance, Isothiazolinone (CMIT/MIT) is typically rotated with Glutaraldehyde to prevent resistance from a single strain. Use it with proper PPE and controlled dosing concentration, and mind its incompatibility with certain reducing substances. As an export-oriented manufacturer, Kairui offers Isothiazolinone in different active-concentration specifications, making it easy for customers to formulate flexibly according to system volume.