Graywater is untreated waste water which has not come into contact with toilet waste. Graywater
includes waste water from bathtubs, showers, bathroom
wash basins, clothes washing machines, laundry tubs, or an equivalent discharge as
defined by the Administrative Authority. It does not include waste water from kitchen sinks, photo lab sinks, dishwashers, or laundry water from soiled diapers.
For the purposes of this guideline, it means Department of Public Health.
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