San Francisco Dual Plumbing Pilot Program Saves 4,000 Gallons of Water Per Day
San Francisco is undertaking novel water reuse methods for new commercial, multi-family, and mixed-use developments, representatives of PHCC and other members of the IAPMO Green Technical Committee (GTC) learned last week. Sarah Rhodes with San Francisco’ Non-Potable Water Program provided an inside view into the workings of the cities’ dual plumbing pilot program during the semi-annual meeting of the GTC.
The San Francisco program started with the construction of a new municipal building and the desire to conserve water. Water is collected from alternate sources and re-used to flush toilets and urinals, irrigate outdoor planting areas, and demonstrate an exterior urban wetland area. It is estimated that 4,000 gallons per day of water is re-purposed through this system, saving freshwater and reducing load on the waste water treatment facility. Grant money is available to help interested building owners implement these types of conservation methods. More information is available at www.sfwater.org/np.
Also during meeting, committee members considered several water and energy efficiency issues affecting the industry. The next committee meeting will be August 2014 in Ontario, Calif.