May 1---- The failure of a valve used to prevent backflow to a chlorination system for the indoor pool located in the BOLD High School is alleged to have been the cause of an electrical fire on Feb. 8 ...
Elasto-Valve Rubber Products (EVR), a manufacturer of rubber duckbill check valves, is drawing attention to the expanding role of duckbill valve technology in backflow prevention across wastewater, ...
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