A report prepared by the City of Los Angeles [City of Los Angeles, 1992] reported that a literature study found that graywater generation ranged from 21 to 59 gallons/capita/day, and that the ratio of graywater to total household wastewater ranged from 53 to 81 percent. The report also presented an estimate of the various types of water use in a suburban home, as follows:
Toilet 34.1% (NOT INCLUDED IN GRAYWATER)
Kitchen 12.0%
Bathroom 24.5%
Laundry 23.2%
Miscellaneous 6.2%
http://www.nwri-usa.org/pdfs/CrookTechnicalMemorandumonGraywater.pdf
The determination of the average amount of wastewater per person per day in rural areas is based on the daily rate of drinking water consumption and the location of the rural area within any country (developing and developed) . Generally, in the urban area is about 60-70% of the drinking water consumption, and are much lower in rural areas where there is no drinking water network.
hi see this
https://wrrc.arizona.edu/sites/wrrc.arizona.edu/files/water-04-00580-manuscript.d
https://books.google.iq/books?isbn=9400978499
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