Routine Seasonal Cleaning
HSE ACOP L8 for Legionella Control stipulates a minimum Spring and Autumn frequency of Cooling Tower cleaning and disinfection. More frequent cleaning may be required which is dependant on site conditions. The tower drift eliminators must be removed and all parts of the system must be safely accessible for cleaning purposes.
Whilst it is difficult and costly to remove the pack material on each occasion it must be inspected and confirmed in good condition and fit for purpose. Sections of packing may be removed and examined.
Access platforms should be provided by site to enable safe and effective access to all parts of the tower structure.
If on-line chlorination / bromination is utilised as part of the routine water treatment regime cleaning of the tower internals is still considered best practice.