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Table 3.1 <br />POTENTIAL WATER SAVINGS FROM EFFICIENT FIXTURES <br />Fixture (a) <br />Fixture capacity (b) <br />Water Use (GPD) <br />Water Savings (GPD) <br />Per <br />capita <br />2.7 -person <br />household <br />Per <br />capita <br />2.7 -person <br />household <br />'Toilets (c) <br />Efficient <br />1.5 gallons/flush <br />6.0 <br />16.2 <br />na <br />na <br />Low -flow <br />3.5 gallons/flush <br />14.0 <br />37.8 <br />8.0 <br />21.6 <br />Conventional <br />5.5 gallons/flush <br />22.0 <br />59.4 <br />16.0 <br />43.2 <br />Conventional <br />7.0 gallons/flush <br />28.0 <br />75.6 <br />22.0 <br />59.4 <br />Showerheads <br />Efficient <br />2.5 (1.7) gal/min <br />8.2 <br />22.1 <br />na <br />na <br />Low -flow <br />3.0 to 5.0 (2.6) gal/min <br />12.5 <br />33.8 <br />4.3 <br />11.7 <br />Conventional <br />5.0 to 8.0 (3.4) gal/min <br />16.3 <br />44.0 <br />8.1 <br />22.0 <br />Faucets <br />Efficient <br />2.5 (1.7) gal/min <br />6.8 <br />18.4 <br />na <br />na <br />Low -flow <br />3.0 (2.0) gal/min <br />8.0 <br />21.6 <br />1.2 <br />3.2 <br />Conventional <br />3.0 to 7.0 (3.3) gal/min <br />13.2 <br />36.6 <br />6.4 <br />17.2 <br />Toilets, Showerheads, and Faucets Combined <br />Efficient <br />not applicable <br />21.0 <br />56.7 <br />na <br />na <br />Low -flow <br />not applicable <br />34.5 <br />93.2 <br />13.4 <br />36.4 <br />Conventional <br />not applicable <br />54.5 <br />147.2 <br />33.5 <br />90.4 <br />Na = not applicable <br />(a) Efficient = post -1994 <br />Low -flow = post -1980 <br />Conventional = pre -1980 <br />(b) For showerheads and faucets: maximum rated fixture capacity (measured fixture capacity) <br />Measured fixture capacity equals about two-thirds the maximum <br />(c) Assumes four flushes per person per day; does not include losses through leakage. <br />(d) Assumes 4.8 shower -use -minutes per person per day <br />Copyright© 1990, American Water Works Association. <br />City of Ramsey, Minnesota - M21.34343 <br />Water Emergency and Conservation Plan <br />Page 111-4 <br />Prepared by Bolton & Menk, Inc. <br />