Greywater refers to wastewater from which sources?

Greywater refers to wastewater from which sources?

• A. Wastewater from toilets.
• B. Water from dishwashers, washing machines and other non-plumbing systems.
• C. Rainwater collected.
• D. Industrial process water.

Answer: (B)

Greywater is the wastewater produced by everyday domestic activities that doesn’t come from toilets. It includes water from dishwashers, washing machines and other non-toilet fixtures such as sinks, showers and baths. It’s distinguished from blackwater, which contains human waste from toilets, and from rainwater or industrial process water, which are not considered household greywater. Because of its lower level of contamination compared with blackwater, greywater can sometimes be treated and reused for non-potable purposes like landscape irrigation, with appropriate treatment and safety measures.

Greywater is the wastewater produced by everyday domestic activities that doesn’t come from toilets. It includes water from dishwashers, washing machines and other non-toilet fixtures such as sinks, showers and baths. It’s distinguished from blackwater, which contains human waste from toilets, and from rainwater or industrial process water, which are not considered household greywater. Because of its lower level of contamination compared with blackwater, greywater can sometimes be treated and reused for non-potable purposes like landscape irrigation, with appropriate treatment and safety measures.