What Is Commercial Water System Chlorination?
Chlorination is a key part of commissioning and maintaining safe commercial water systems. This guide explains what chlorination is, why it matters and when it is required in commercial and industrial projects.
What is chlorination?
Chlorination is the process of disinfecting a water system using a chlorine-based solution to make it safe for use. It involves flushing, dosing and neutralising the system, then taking samples to confirm the water is safe and compliant before the system is brought into use.
Why chlorination matters
New and modified pipework can introduce contamination during installation. Chlorination ensures the water system is clean, safe and free from harmful bacteria before it is used. This protects building users and supports compliance with water safety standards.
When is chlorination required?
Chlorination is typically required for new water systems, modified or extended pipework, and systems that have been out of use. It is a common step in commissioning new commercial and industrial water systems before handover.
Who should carry out chlorination?
Chlorination should be carried out by a qualified contractor. Flowtech is qualified in the chlorination of hot and cold water systems and provides compliant service delivery with documentation to support handover and facilities compliance.
Documentation and compliance
Proper chlorination should be followed by compliant documentation — including chlorination certificates and sampling results. This supports contractor handovers, facilities compliance and ongoing water safety management.