Ancient pumping technology is 'cool' for Macomb County Public Works agency

Macomb County Public Works will continue to use 2,500-year-old technology to ensure St. Clair Shores area residents can flush freely, avoid flooding.
The Macomb Daily

Ancient pumping technology not too old for Macomb County Public Works

Public Works is replacing four 45-year-old “giant screws” – aka the “Archimedes screw” – that carry sewage over 30 feet ...