Grey water

"Liquid waste water from domestic saniation equipment, for example showers, baths, sinks, kitchens and domestic washing facilities. Grey water does not include waste water from toilets, which is known as black water." (United Nations Publications, 2013) 

Sources

United Nations Publications. "Glossary of Shared Water Resources (English-Arabic): Technical, Socioeconomic and Legal Terminology." (2013). DOI:https://dx.doi.org/10.18356/70b462ce-en