The second edition, published in 2011, merged two of the cross-connection control industry’s most relied upon training manuals into a single text. This included the first edition of IAPMO’s Backflow Prevention Reference Manual and the UA’s Cross-Connection Control Manual. The third edition of the Backflow Prevention Reference Manual, published in 2016, continued to build on the important collaboration between the UA and IAPMO’s Backflow Prevention Institute (BPI). The third edition became the most used reference manual in the training and certification of backflow assembly testers, repairers, surveyors, and others working in the cross-connection control industry.
The manual covers the history of backflow prevention; definitions and devices; backflow prevention hydraulics; testing methods with full, detailed illustrations; an overview of gauges and test kits; troubleshooting guide; cross-connection control surveys; program development; code requirements and installation standards. The manual also contains sample test questions to help prepare an individual to become a certified backflow prevention tester, surveyor, or repairer. The fourth edition has been updated to the latest editions of the plumbing, mechanical, and fire protection codes and standards. It also features expanded chapters about non-testable devices and methods, and improved, updated, and expanded testing/repair/troubleshooting information reflecting the latest products and field-testing procedures.