This is the first consolidated reference we’re aware of regarding these Trends in Backflow Preventer Installation and Selection - New Engineering Guide.
Over the last several years municipalities and water purveyors have been evolving their standards for backflow prevention valves on commercial facilities.
This 21 page illustrated guide is presented by The Joyce Agency, experts in commercial plumbing and waterworks for the Mid-Atlantic region including Virginia, Washington DC and Maryland. It covers key topics including:
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