本powerpoint演示文稿首先简要概述了将饮用水（PW）改造为再生水（RW）的新调查和检查技术，包括:现场调查；系统识别；防回流升级；关闭测试；以及RW服务安装。陈述结论包括:了解现场风险；清楚地标出管道系统；与当地卫生部门合作，制定双方都熟悉的程序；将停机测试作为正常交叉连接程序的一部分；核实所有工作；承担责任；然后，回顾一下你的应对程序。

This powerpoint presentation begins by providing a brief overview of new survey and inspection techniques for retrofitting of potable water (PW) to recycled water (RW), including: site survey; system identification; backflow prevention upgrades; shut down testing; and, RW service installation. Presentation conclusions include: know the site risks; clearly mark out piping systems; work with your local health departments to develop procedures you are both comfortable with using; make shut down testing part of your normal cross-connection procedures; verify all work; take responsibility; and, review your response procedures.