This is a system built by Andersen Plumbing, it will prevent the city storm water from backing up into your basement. plumbers in Chicago Plumbing in Chicago

This is an almost completed system that shows the access lid for the manhole below the floor.

This is a shot of my son wishing he was back at school.  We must first dig out the basement to install our system.  We clean it all up and haul it away...