Low Flow Showerheads
Showerheads. Do you need a new one? Check it out.
The best way to compare shower heads is by reading the flow rate, in gallons per minute (gpm). Conventional shower heads use 2.5 gallons of water per minute (measured at 80 psi of water pressure). Shower heads designed for efficient water use can deliver the same quality shower, but will use less water per minute. The following presents the per person annual savings that would be realized by using different types of water-saving shower heads instead of a conventional 2.5 gpm shower head (assuming a 10 minute daily shower). Multiply the number by the number of people in your family to estimate your potential household savings.
"Low flow shower-heads help reduce water waste, however do not lower shower head pressure."
ANNUAL SAVINGS (vs 2.5 gpm flow)
- 2.0 gpm flow: 1,825 gallons of water
- 1.75 gpm flow: 2,737 gallons of water
- 1.5 gpm flow: 3,650 gallons of water
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Before 1992, some showerheads had flow rates of 5.5 gpm. Therefore, if you have fixtures that pre-date 1992, you might want to replace them if you're not sure of their flow rates. Here's a quick test to determine whether you should replace a showerhead:
Place a bucket—marked in gallon increments—under your shower head.
Turn on the shower at the normal water pressure you use.
Time how many seconds it takes to fill the bucket to the 1-gallon (3.8 liter) mark.
If it takes less than 20 seconds to reach the 1-gallon mark, you could benefit from a low-flow shower head.
Source: U.S. Department of Energy