06/12/2026
Copper-silver ionization (CSI) can be highly effective for controlling Legionella, but proper system design is critical. Factors such as water conductivity, pH, flow rates, scaling potential, and maintaining consistent copper and silver ion levels all impact performance. Unlike many oxidizing disinfectants, CSI remains effective in hot water systems and can perform across a wide pH range, making it a strong option for healthcare facilities, hotels, and large buildings. Before selecting a CSI solution, make sure your water chemistry and system design are evaluated by an experienced Legionella control expert.
https://legionellacontrolsystems.com/design-considerations-when-using-copper-silver-ionization-csi-for-the-control-of-legionella/