Why Should I Disconnect My Downspout?

If your downspout runs into your sewer line, you can flood during heavy rains even with a Flood Control System.  In most surrounding suburbs, it is the law that homes are to disconnect the downspouts as an environmental requirement of the Clean Water Act, which prohibits disposal of storm water into the sanitary sewer.  In Chicago, City Code requires that all the downspouts be disconnected from your sewer line prior to the start of the job.