TechNote 06 Fixtures High Efficiency Toilets  

Physically resembling industry standard toilets, high efficiency toilets (HETs) assist in reducing water usage. These toilets average anywhere from 0.8 to 1.28 gallons of water per flush, using at least 20 percent less water than mandated by the U.S. Energy Policy Act of 1992. HETs certified under the Environmental Protection Agency’s (EPA) WaterSense program must use no more than an average flush volume of 1.1 gallons. Recent advances in flushing technology allow HETs to remove waste with less water by increasing water velocity.