Chicago backflow testing is important to ensure that your backflow assembly is in proper working order and certified with the City. Backflow testing ensures that your potable (drinking) water distribution system is functioning properly, and that contaminated water cannot mix back in with potable water in the event of a backflow. Our water is constantly pressurized and should flow in just the intended direction. A backflow event is when water flows backward. If a water main were to rupture or the City’s firefighters opened multiple hydrants to put out a large fire, the water main’s pressure could plummet. The water demand upstream may create a flow reversal and tanks or hoses that contain chemicals or other non-potable things could be sucked up into the water supply. To prevent this from happening, backflow preventers are installed on a water main. They have a series of pressurized chambers and valves that prevents this from happening. During a test the certified tester measures the pressure of each chamber and checks the functionality of all the valves. We also have to make sure that the device is clear of any debris. If applicable Chicago residents must have their backflow devices tested every year to ensure that they are working properly. A licensed backflow tester must perform the test and will submit the results to the City.

A cross connection is any actual or potential connection between the drinking water lines and potential sources of pollution or contamination. This can include a piping arrangement or equipment that allows the drinking water to come in contact with non-potable liquids, solids, or gases. A cross connection can be hazardous to humans if/when there is a backflow of contaminated water.

In order to protect the public from cross-connection hazards, the City of Chicago states that all businesses and facilities with cross connections must have their backflow prevention devices tested on an annual basis. Backflow testing must be performed by a certified tester and the results must be submitted to the village. Failure to do so could result in serious health consequences for you and your employees, customers, or tenants and possible fines.