Reverse seepage of water in a distribution system. The process of backsiphonage arises when there is negative pressure is some sort of obstruction or draining in the water distribution lines as a result of breaks or repairs. When this occurs then there is a greater demand for water at certain locations such as piping or fire fighting areas. Backsiphonage works in reversing the usual flow in the water distribution system and has the negative effect of bringing in pollutants into drinking water. There is a great variety of devices to utilize for averting issues of backsiphonage from increasing the degree of pollution and gases from being incorporated into your water supply system. There are six standard kinds of devices that can be equipped to treat cross-connections such as reduced pressure zone devices, double check valves, air gaps, etc. These extremely effective devices are designed to prevent the occurrences of back siphonage and backflow with few side effects.