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S1:E4 Down the Drain
First Aired: January 14, 1991
“Down the Drain” takes viewers inside the hidden systems that carry water away from homes, streets, and cities, revealing what really happens after it disappears down the sink or storm grate. Through on‑site reporting at treatment plants, interviews with engineers, and clear scientific explanations, the episode shows how wastewater is cleaned, where it goes, and why pollution and overuse threaten these essential systems. Designed to build environmental awareness, the special helps teens understand the impact of everyday choices on water quality and the health of their communities.
