Mark Donoghue, Products and Services Director, DHD Cooling
It is now more common to read about cases of Legionnaires’ Disease in the media than ever before, with outbreaks regularly being reported in cities around the world all the time. Many of these cases are attributed to contamination of domestic systems, showers and spas, but some are the result of operating cooling towers.
Whilst this problem is not new, with the first reported case in Philadelphia in 1976, the UK has been at the forefront in leading the battle with Legionnaires’ Disease, which has a mortality rate of approximately 10%.
The Health and Safety Executive (HSE) worked with manufacturers and industry experts to issue the Approved Code of Practice L8 in 1991 which advised manufacturers, owners, operators and service providers on the use of cooling systems (and domestic water systems) and their safe operation with regards to legionella bacteria.












