The National Plumbing Standards passed by Congress in 1992 as part of the Energy Policy Act marked a turning point for U.S. manufacturers of toilets, faucets, and shower heads. With these new standards, the days of 3.5 to 7 gallon per flush (gpf) toilets and 4 to 12 gallon per minute (gpm) shower heads were numbered. Implementation of these standards meant that an average household could reduce its per capita indoor water use from over 70 gallons per day to approximately 50. While the '92 standards represented a tremendous improvement, there are many new, and some not so new, technologies that allow homeowners and builders to reduce water use by an additional 25 gallons or more per day without sacrificing performance--and save energy, too.
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