A final word
In conclusion, both UV and ozone can be effective at improving water quality through both the inactivation of microbes and the destruction of chloramines. However, they are not a replacement for use of a registered sanitizer. A sanitizer residual must be maintained at all times to help prevent transmission of disease among swimmers in the water. These supplemental systems, while helpful, are just that—supplemental.
References
Clancy, J.L., Z. Bukhari, T.M. Hargy, J.R. Bolton, B. Dussert, and M.M. Marshall. Comparison of medium- and low-pressure UV light for Cryptosporidium inactivation. JAWWA, 29:97-104, 2000.
Geo. Clifford White, Handbook of Chlorination and Alternative Disinfectants, 1999, Chapter 13.
Zach Hansen, who obtained his bachelor of science degree in chemical engineering from Auburn University, he three years of product-development experience in the pool and spa industry with BioLab Inc., A Chemtura Company.
Karen Rigsby works as a technical services senior specialist for BioLab Inc. She has been involved with the recreational side of water treatment since 2001, focusing on education, problem resolution and new product development. Rigsby is a member of the Association of Pool & Spa Professionals (APSP) Recreational Water Quality Committee and a National Swimming Pool Foundation (NSPF) certified instructor.
