Watch these drones fly through sewers in Scotland

A major Scottish utility company is using drones to better monitor the country’s sewer system and help prevent leaks, collapses and pollution.
Scotland has a sewer network of 53,100 kilometers, some of which dates back to the Victorian era.
Scottish Water says using drone technology will save them resources and keep workers safe above ground.
Watch more by clicking the video at the top of this article.
ctvnews