Modern Marvels

Plumbing: The Arteries of Civilization (7x40)

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Each day, billions of gallons of water flow through cities into homes and back out again in a confusing mess of pipes, pumps, and fixtures. The history of plumbing is a tale crucial to our survival--supplying ourselves with fresh water and disposing of human waste. From ancient solutions to the future, we'll plumb plumbing's depths.