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Why sewers are good?

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Anonymous

11y ago
Updated: 8/20/2019

They transport "grey water" (runoff, toilet, sink, washing machine, etc) to a water treatment plant to be processed, and in turn returned to the environment (usually to a river, lake, etc). If we didn't have sewers, we'd be sick. A lot. All the time.

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Wiki User

11y ago

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