TP – 1182 An Introduction to Domestic Water Cross Connection Control for Professional Engineers

Description

A cross-connection is the link or channel connecting a source of pollution with a potable water supply. The polluting substance, in most cases a liquid, tends to enter the potable supply if the net force acting upon the liquid acts in the direction of the potable supply. Two factors are therefore essential for backflow. First, there must be a link between the two systems. Second, the resultant force must be toward the potable supply. An understanding of the principles of backflow and backsiphonage requires an understanding of the terms frequently used in their discussion.