IAPMO, UA Publish Fourth Edition of Backflow Prevention Reference Manual

In collaboration with the United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, the International Association of Plumbing and Mechanical Officials has released the fourth edition of IAPMO’s Backflow Prevention Reference Manual.

The fourth edition of this full-color illustrated reference manual is designed to teach every aspect of backflow prevention and cross-connection control, from identifying and testing the wide variety of backflow prevention assemblies to proper selection and installation of both testable assemblies and non-testable backflow prevention devices and methods. This manual provides the user with the information needed to understand what degree of hazard or potential risks exist to potable water systems, and whether the proper backflow prevention method, device or assembly has been selected and correctly installed.

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.