Ministry of Environment Temporary Allowance of Series 007 Double Check Valve Backflow Prevention Devices Amid Supply Chain Shortages
Published on: 01/06/2021
In 2021, the Ministry of Environment, Conservation, and Park watermain disinfection procedure was amended to require contractors preforming temporary watermain bypasses use a Series LF009 backflow preventer. Until December 2020, contractors have been permitted to use a Series 007 Double Check Valve.
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