Greywater is water from your bathroom sinks, showers, tubs, and washing machines.  It is not water that has come into contact with feces, either from the toilet or from washing diapers, which is called blackwater.

About 65 percent of domestic wastewater is greywater, and that translates into 40 gallons of water per person daily.  For a family of four, that means about 5,000 gallons monthly – enough greywater fill a backyard [Read more...]