Graywater


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Graywater

Appendix G of the Uniform Plumbing Code (UPC) defines graywater as “untreated household wastewater which has not come into contact with toilet waste. Graywater includes water from bathtubs, showers, bathroom wash basins, and water from clothes-washer and laundry tubs. It shall not include wastewater from kitchen sinks or dishwashers.” The International Plumbing Code (IPC) defines graywater in its Appendix C as “wastewater discharged from lavatories, bathtubs, showers, clothes washers, and laundry sinks.” Some states and local authorities allow kitchen sink wastewater to be included in graywater. Other differences with the UPC and IPC definitions can be found in state and local codes. Project teams should comply with the graywater definitions as established by the authority having jurisdiction in their areas.
References in periodicals archive ?
The cost of installing a graywater system into a new home ranges from $500 to $2,500, according to an article from HGTV.
The vertical gardens are designed to be eco-friendly, and many of the larger projects use wastewater from their host building to sustain the plant life, recycling the runoff from showers and sinks -- known as graywater -- rather than using freshwater.
For a long time, the informal users of rainwater and graywater, who have become water conservation experts, were completely disconnected from governmental water-management agencies and engineering and technology professionals.
Strategies focusing on applying ICT to external environments and components of buildings, such as "B1 Intelligent vegetal wall system", "D2 Inductive shutter", "D3 Solar photoelectric glass", "D10 Solar-tracking light-guide plates", "D11 Smart roof light-guide system", and "H1 Intelligent graywater recycling system", are classified as "Attractive" attributes.
Part of the water savings comes from a water treatment facility that reduces dependence on municipal water through the treatment and re-use of rainwater and graywater from showers and lavatories.
Among his topics are water from springs, air conditioning condensate recovery, water gathered from clouds, solar water distillation, graywater systems, aquatic plants as a waste management system, biological filter and constructed wetland systems, septic system design, and composting toilets.
broad discharge management categories including fuel management, engine and oil control, solid and liquid maintenance, graywater management, fish hold effluent management and ballast water management.
The most simple, elegant, and efficient solutions are often low-tech and low-impact, for instance, the use of swales, cisterns, and graywater instead of sewers and municipal water, along with urban agriculture replacing nonproductive right-of-ways, grass lawns and the purchase of produce from grocery stores.