Why chlorinate a water system?
Disinfection may be required after certain system works, commissioning, contamination concerns or where a risk-management process identifies a need for corrective action. The exact method and scope depend on the system.
Is chlorination a substitute for a Legionella risk assessment?
No. Disinfection treats a system at a point in time, while risk assessment and ongoing control deal with why risk may arise and how it should be managed.
What should certification record?
Useful completion documentation should clearly identify the property or system, the work performed and relevant details of the completed treatment. The exact paperwork depends on the service scope.
Can sampling and chlorination be combined?
Yes, where appropriate. Sampling may be part of an investigation or verification process, while chlorination may be used where disinfection is required. The correct sequence depends on the purpose of the work.
