Causes of backflow in a drinking water distribution network
Unexpected events, occurring in the municipal aqueduct, can cause a phenomenon called "backflow", that is, a reversal of the direction of water flow in a drinking water pipe. For example, a pressure fluctuation, a broken pipe, or a great demand for water during rush hours (industrial park) are often the cause of backflow. These events can then lead to siphoning or back pressure in the drinking water supply system.