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Toilet Water Use

Figure 1: National indoor per capita use percent by fixture (Mayer, et. al. 1999)

Table 1: Toilet water use rates, non-conserving and conserving homes

Non-Conserving Homes Average
Conserving Homes
Flush Volume
3.61 gal. per flush
1.54 gal. per flush
-2.07 gal.
Daily Per Capita Use
18.8 gallons
9.1 gallons
-9.7 gallons
Flushes Per Capita Per Day
5.17 flushes
5.46 flushes
0.29 flushes/day

Source: DeOreo, et. al. 2001

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