![Drones Deployed to Aid in Sewer System Smoke Testing](https://cole-mswmag.imgix.net/https%3A%2F%2Fwww.mswmag.com%2Fuploads%2Fimages%2Fsmoke_testing.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=378e2093f9fa7e1e16dbd6d94fddc8f4)
The city of Minneapolis is experimenting with a unique method for detecting problem areas in its collections system — drones.
This fall, when the city conducts its annual smoke testing, drones will be circling the skies getting images of hard-to-access rooftop vents. Katrina...