Poorly maintained sewers can have disastrous consequences, but regular inspections can be time-consuming, expensive, and dangerous. The solution: subterranean dung drones.
Poop Drones Are Keeping Sewers Running So Humans Don’t Have to

Poorly maintained sewers can have disastrous consequences, but regular inspections can be time-consuming, expensive, and dangerous. The solution: subterranean dung drones.