As part of its ongoing efforts to help purchasers identify water-efficient commercial products, the US Environmental Protection Agency's (USEPA's) WaterSense® program recently conducted a study on the effectiveness of high-efficiency prerinse spray valves. Although the results were supportive of labeling more energy- and water-efficient spray valves, they also demonstrated that USEPA still has work to do when it comes to measuring the performance of these devices.
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