What is gray water has it been used in the Southwest
Gray water is wastewater from sources such as washing machines, showers, bathtubs, and sinks that is not contaminated with fecal matter. It can be reused for purposes like irrigation and flushing toilets.
Gray water has indeed been used in the Southwest region of the United States, where water scarcity is a significant issue. Many states in the Southwest, such as California, Arizona, and New Mexico, have implemented regulations and incentives to promote the use of gray water for non-potable purposes. This helps reduce water consumption, especially in outdoor irrigation, and can alleviate the strain on municipal water supplies.