Plumbing: Backflow Preventers

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Backflow is an often unknown or misunderstood phenomena. Even less understood is the purpose of backflow preventers and how they operate. Backflow is a condition in which water in a building or facility will flow backwards, creating a potential hazard to the domestic water system. Without a properly selected, installed, maintained and tested backflow device, hazard conditions resulting in illness or even death can occur. In this interactive online course, you will be introduced to what backflow is, under what conditions backflow can occur and the provisions to prevent backflow from occurring. Several key definitions will be presented and the operation of each type of backflow preventer is briefly explained. At the end of this training you will have a workable understanding of backflow devices and how to troubleshoot breakdowns.

Objectives SME

Course Objectives

By the end of this course, you will be able to:

State the purpose of backflow preventers
Identify who is permitted to perform the annual backflow preventer test
List the steps to diagnose a leaking RPBP
Recognize the correct backflow preventer to use in a given situation
Select the correct air gap size for relief openings on backflow preventers
State the frequency in which backflow devices are required to be tested

SUBJECT MATTER EXPERT: Robert Hazleton, Jr., PE

Bob has over 40 years of experience in mechanical engineering. His experience includes hands on work at an electrical generating station, part of an installation team at a NASA tracking station and supervisor of an operations and maintenance crew at a research laboratory. Bob also has been a design engineer working for Lenity Architecture and its predecessors for the past 18 years. This range of experience gives Bob a unique perspective of mechanical systems design and installation.

Bob is a registered professional engineer in 36 States. During his time with Lenity Architecture, Bob has worked on hundreds of projects across the United States and Canada. In this range of work, Bob has experienced a vast variety of building codes and interpretations. Bob has experience with HVAC, plumbing, natural gas, electrical power, fire alarm and low voltage systems. He has experience testing smoke control systems and kitchen ventilation systems.

Bob is married and lives in Oregon. His two adult children are employed in the medical field as an MD and an RN. Bob is a retired NCAA and High School football official.