拟议中的美国立法将为管道装置和器具制定全国用水效率标准。该立法旨在通过减少需求来减少开发新水源的需求和成本。评估了立法对水和废水系统的潜在好处。预计将通过在全国范围内使用低流量厕所、淋浴头和水龙头实现节水。本文给出了三个简短的案例研究。简要讨论了马桶、淋浴喷头和水龙头曝气器的性能。文中提到了与减少水需求和废水流量相关的避免成本。包括14个参考文献和表格。

Proposed US legislation would establish nationwide water-use efficiency standards for plumbing fixtures and appliances. The legislation is intended to reduce the need for and costs of developing new sources of raw water by reducing demand. Potential benefits of the legislation for both water and wastewater systems are assessed. Water savings that could be realized through nationwide use of low flow toilets, showerheads, and faucets are projected. Three short case studies are given. Performance of toilets, showerheads and faucet aerators are briefly discussed. Avoided costs associated with reduced water demand and wastewater flows, are mentioned. Includes 14 references, tables.