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Water Savings

WaterSense products are at least 20 percent more efficient than standard models. EPA requires all products with the WaterSense label to be certified to ensure expected water efficiency and high levels of product performance.


Bathroom Faucets | High Efficiency Toilets  | Flushing Urinals | Irrigation | New Homes

bnBathroom Sink Faucets
Faucets account for more than 15 percent of indoor household water use. Many pre-1992 faucets use from 3-7 gpm. Faucets installed at a later date average 2.2 – 2.5 gpm.  WaterSense bathroom sink faucets use 1.5 gpm. 
By installing WaterSense labeled bathroom sink faucets or faucet accessories, an average household can save more than 500 gallons each year. These water savings also reduce demands on water heaters and will save energy. 
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vbHigh Efficiency Toilets (HET)
Residential toilets account for about 30 percent of indoor residential water use in the United States. The Energy Policy Act of 1992 established the maximum flush volume of 1.6 gallons per flush (gpf) for toilets installed after 1994.  Toilets installed before 1994 use between 5 and 7 gallons per flush. WaterSense HETs establish a maximum flush volume of 1.28 gpf.  This represents a 20 percent reduction from the current 1.6 gpf standard.  If you replace older, existing toilets with WaterSense labeled models, you can save 4,000 gallons per year with this simpler, greener choice.
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nFlushing Urinals
Replacing just one older, inefficient urinal that uses 1.5 gpf with a WaterSense labeled model could save a facility approximately 4,600 gallons of water per year. Nationwide, if all older, inefficient urinals were replaced, we could save nearly 45 billion gallons annually. That’s enough water to supply more than 450,000 households for a year!
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Showering represents approximately 17 percent of residential indoor water use in the United States—more than 1.2 trillion gallons of water consumed each year. To raise consumer awareness and help improve the water efficiency of showerheads, WaterSense has issued a notice of intent (NOI) to develop a specification for high-efficiency showerheads. Learn More at
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nLandscape Irrigation
Nationwide, landscape irrigation is estimated to account for almost one-third of all residential water use. Some experts estimate that more than 50 percent of commercial and residential irrigation water use goes to waste due to evaporation, wind, improper system design, or overwatering.

Looking for help with your landscape?
Review the list of landscape irrigation professionals partnering with WaterSense! All too often, landscape irrigation wastes water—up to 1.5 billion gallons every day across the country.

vnWeather-based Irrigation Controllers
Weather-based irrigation controllers can reduce water use by 20 percent compared to regular equipment. This can add up to a savings of nearly 24 billion gallons per year across the United States. That is approximately equal to more than 7,000 hoses running non-stop for a year. Weather- or sensor-based irrigation control technology uses local weather and landscape conditions to tailor irrigation schedules to actual conditions on the site or historical weather data. Soil moisture sensors determine the amount of water in the ground available to plants. WaterSense plans to label weather-based irrigation controllers and soil moisture sensors. To learn more about draft specifications, visit .
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nWaterSense New Homes
Houses built to specification include WaterSense labeled toilets and faucets and ENERGY STAR labeled appliances and other water-efficient features indoors, as well as water-efficient landscaping outdoors. WaterSense labeled homes are built to use 20 percent less water than conventional new homes. Learn more at
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Bureau of Water . Phone: (803) 898-4300 . Fax: (803) 898-3795 . Contact Us