Flexi Says: Fresh water is also preserved by purifying wastewater. Wastewater is water that has been used for washing, flushing, or manufacturing. It includes the water that goes down your shower drain and that is flushed down your toilet. Instead of dumping wastewater directly into rivers, wastewater can be purified at a water treatment plant (Figure below). When wastewater is recycled, waterborne diseases caused by pathogens in sewage can be prevented.
