WaterSense fixtures and manufactured-home community water use
EPA WaterSense sets a performance threshold of at least 20% less water use than standard products while maintaining equal or better performance. EPA estimates that the program had helped save more than 7.5 trillion gallons through 2024. The 20% is a product-level comparison and the 7.5-trillion-gallon figure is cumulative program-wide savings through a stated year; neither is a forecast for one park's meter.
In a community, fixtures are only one part of demand. Leaks, irrigation, occupancy, line pressure, meter configuration, sewer charges, and resident behavior can outweigh a product specification. EPA's cumulative estimate does not isolate a park's fixture replacements, provide a local denominator, or establish a payback period.
Compare the rated gallons per flush or gallons per minute with actual meter readings and repair history. A replacement decision should use the installed product, local rate, and observed usage rather than a national claim alone.