Robotic crawler

The Envirosight Supervision 250 Crawls Through Sewer Pipes So No Human Has To
From Wired Magazine Article

What it’s used for:
Revealing damage deep inside city pipes

You go, you flush: out of sight, out of mind. Not for city maintenance crews. With 850 billion gallons of sewer and storm water leaking into watersheds around the country every year, the Environmental Protection Agency is cracking down on cracked pipes. And the SuperVision 250 is riding that great, stinky wave of demand.

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