Where does domestic wastewater go

• Each time we wash something or flush our toilets, water containing paper, cloth, soap, detergent, oil, grease, food scrap, faeces, etc., goes down the drain.
• This water gets accumulated and forms sewage. In large cities, this is also known as municipal wastewater.

The Sewer System:

• The sewer system, a channel of pipelines, carries out sewage from our houses.
• The sewage leaves our houses through drain pipes and flows to the sewer mains of the city.
• Waste flows easily through sewers due to a slight slope given to the drainage system.
• Most sewer pipes are underground. If there is a leak or blockage in any of these pipes, it can be repaired, for this purpose, manholes are built.
• A manhole is a hole, usually with a cover, through which a person may enter a sewer or drain to fix the faulty pipes.
• The sewer mains flow into progressively larger pipes until they reach the wastewater treatment plant.