What is sewage and where does it come from?

Sewage, also called wastewater, is the contaminated water from homes, schools, and businesses.  It comes from toilets, showers, clothes washers, dishwashers, etc.  The contaminants include fecal matter, urine, soaps, detergents, food particles, hair, rags, paper, toys, dead goldfish, and anything else that is disposed in a drain.  A person creates …

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