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Backflow prevention – Cross connections in drinking water supplies

This technical solution explains backflow prevention and cross connection control in drinking water supplies. It outlines definitions, hazard ratings, device selection, installation and commissioning requirements, and responsibilities. The BPC uses this guidance to clarify compliance with plumbing regulations and standards, and to support safe, effective protection of drinking water systems.

Version history
Category
Fact sheet
Version
1.0
Published
13 February 2022
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