When considering your options for Legionella water treatment, there are several factors to consider. Unless you are in remediation mode, chances are you should install a long term “preventative” type secondary water treatment technology solution. A Legionella water treatment technology that will “prevent” potentially dangerous Legionella exposure to facility occupants. Additionally, as part of ASHARE 188, most facilities with a higher relative risk of Legionella growth will be advised to implement a preventative type of secondary water treatment technology. The same applies to the summer 2017 Legionella directive issued by the CMS in the USA.
Given the nature of facility occupants or the age of the facility, higher-risk facilities typically include hospitals, nursing homes, and hotels.