BSRIA launches update to Water Treatment for Closed Heating and Cooling Systems

Water treatment is essential in closed heating and cooling systems. Without it, there is far greater risk of biological fouling (also known as biofouling), corrosion and scale. These problems can lead to poor performance, system failures and costly remedial works.

BSRIA first published guidance on water treatment in 1993. A major overhaul of this older guide, including a change of scope, occurred in 2013, at which point it was renumbered and renamed: BG 50/2013 Water Treatment for Closed Heating and Cooling Systems. This guide became widely used in the industry; however, it became clear that it needed an update to bring it in line with current technology and practices and updated standards and guidance. In particular, it is consistent with Pre-Commission Cleaning of Pipework Systems (BG 29/2021), which was published in February 2021.

The technical content of the publication was written by Dr Pamela Simpson with the help of a steering group, including representatives from the British Chemicals Association (BCA), the Closed Systems Control Association (CSCA), the Industrial and Commercial Heating Equipment Association (ICOM), the Institute of Corrosion (ICorr), the Institute of Workplace and Facilities Management (IWFM) and the Water Management Society (WMSoc).

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