SEE THE SOLUTION AND EXCITING RESULTS! > PROFESSIONAL THE CHALLENGE Chicago’s Museum of Science and Industry (MSI), one of the largest science centers in the Western hemisphere, entertains 1.4 million people each year. That’s a lot of trips to the bathroom. With many hands-on, interactive exhibits, MSI is a learning hub for kids. And with so many kids using the washrooms, MSI’s Director of Facilities Operations, Ed McDonald, has a lot on his

Join for free to read