Explain the sewage system at home in cities ?
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a sewer system is completely gravity-powered, like a septic system. Pipes from each house or building flow to a sewer main that runs, for example, down the middle of the street. ... The sewer mains flow into progressively larger pipes until they reach the wastewater treatment plant.
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a sewer system is completely gravity-powered, like a septic system. Pipes from each house or building flow to a sewer main that runs, for example, down the middle of the street. ... The sewer mains flow into progressively larger pipes until they reach the wastewater treatment plant.
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