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Greywater
Greywater is the wastewater that comes from the laundry, kitchen, bathroom faucets, baths, and showers. Greywater, if properly collected and stored, can be safely re-used, thereby reducing fresh water consumption. Graywater is distinguished from "black water", which is wastewater from toilets, kitchen sinks and dishwashers, and should never be reused in the home as there are possibilities of contamination by bacteria, viruses, and other pathogens. Greywater reuse is a part of the fundamental solution to many ecological problems. Grey water can replace fresh water for irrigation. Residential water use is almost evenly split between indoor and outdoor. All except toilet water could be recycled outdoors, achieving the same result. More....
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