If Legionella is found in decorative fountains, is remediation needed?
We would discourage the installation of decorative fountains in hospitals.
For buildings that do not have persons at risk for pneumonia, the water fountains can be treated with disinfectants such as chlorine or bromide. Ultraviolet light may also be effective. Matt Freije (www.hcinfo.com) recommends draining and cleaning decorative fountains at least twice a year – or more often if slime or dirt is visible. Surfaces can be scrubbed with a disinfecting solution (1 part chlorine to 20 parts water may be appropriate). Consult a water treatment service for advice.