Sovereign Immunity. The legal protection that prevents a sovereign state or person from being sued without consent. Sovereign immunity is a judicial doctrine that prevents the government or its political subdivisions, departments, and agencies from being sued without its consent.
Detecting and locating leaks in Underground Water Mains Using. Thermography. Mohamed Fahmy, P. Eng., M. ASCE1 and Osama Moselhi, P. Eng, F. ASCE2. 1PhD candidate, Dept. of Building, Civil, and Environmental Engineering, Concordia Univ., 1455 Blvd.
A vacuum breaker is an attachment commonly placed on a bibcock valve or toilet or urinal flush valve, that prevents water from being siphoned backward into the public drinking water system. This prevents contamination should the public drinking water system's pressure drop. vacuum breaker typically contains a plastic disc that is pressed forward by water supply pressure, and covers small vent holes.