Grey Water: Definition, Uses, Laws, Systems and Treatment Methods

Reusing greywater is one of the best things you can do to reduce water demands and become more sustainable and self-sufficient, especially if you want to live off-grid.

To get you started, here’s what you need to know:

• Grey water definitions
• Grey water laws
• Greywater uses
• Greywater systems
• Treatment methods

What Is Grey Water?

Grey water (also greywater, gray water, or graywater) is a type of wastewater that contains fewer contaminants than black water, so it is easier to treat and reuse.

The legal definition of grey water varies from place to place but is usually defined as water coming from sinks, showers, bathtubs, and washing machines.