先进的节水技术包括两种策略，最小流量装置或水回用系统。本文回顾了这两种保护技术的使用、它们对用户服务的潜在影响、经济考虑和应用示例。通过使用最小流量装置或水回用系统，家庭、汽车旅馆、办公室和其他家庭设施的日常用水需求可以减少50%或更多。对于个人国内用户，最低- 流动装置通常比水回用系统更合适，因为它们更易于安装、操作和维护，没有健康风险，并且每减少一单位流量的成本更低。使用最小流量装置导致的需水量大幅减少可能会对水、废水和能源服务产生重大影响。迄今为止的经验表明，在各种情况下都能成功使用，而且这种固定装置具有成本效益。 包括38个参考文献、表格和图。

Advanced water conservation techniques include two strategies, minimum-flow fixtures or water reuse systems. This article reviews the use of these two conservation techniques, their potential effect on user services, economic considerations, and examples of applications. Daily water demands in homes, motels, offices, and other domestic facilities could be reduced by 50 percent or more through utilization of minimum-flow fixtures or water reuse systems. For individual domestic users, minimum-flow fixtures are usually more appropriate than water reuse systems, because they are easier to install, operate, and maintain, have no health risks, and are lower in cost per unit of reduced flow. Dramatic reductions in water demand resulting from the use of minimum-flow fixtures can have a significant effect on water, wastewater, and energy services. Experience to date demonstrates successful use under a variety of circumstances, and that such fixtures are cost effective. Includes 38 references, tables, figures.