The devices are installed on the City’s water supply line as close as possible to the customer’s water meter and/or internally on any equipment that utilizes water that potentially may become contaminated such as boilers, carbonators, cooling towers, x-ray machines, etc.
What is a Cross Connection?
A cross connection is the actual physical connection between potable (drinking) water and any substance of questionable quality. A cross connection commonly occurs when a water hose is left running, yet is submerged in a tree well or in a bucket of soap water. If a backflow event were to occur, these substances could enter the drinking water supply and possibly be distributed throughout the distribution system where numerous consumers would be exposed to these substances.