This workshop will provide a comprehensive look at how to design premise plumbing systems to mitigate the risk of Legionella pneumophila. It will review the epidemiology and history of Legionnaires’ disease, contributing factors, design methodologies to reduce risk (supplemental disinfection, filtration, hot water, flushing, etc.) and considerations when using each type, and other considerations that engineers need to take to reduce their liability. The workshop will include exercises in how to properly size recirculation pumps, collaborative team challenges solving real-world engineering problems, and discussion time to discuss design methodologies.
The workshop will be broken down approximately as follows:
- Context (epidemiology, history, lawsuits, standards, politics, and contributing factors) – 30 minutes
- Design methodologies to reduce risk – 120 minutes
- Hot water system design considerations – 120 minutes
- Engineering risk and liability considerations – 60 minutes
- Hands-on practice exercises and instructor-led discussion – 90 minutes
Upon successful completion of the course you will be able to:
- Identify the contributing factors to the growth of Legionella in premise plumbing systems.
- Recognize “standard of care” and the steps to take to mitigate engineering risk.
- Understand the pros and cons of different design methodologies to reduce risk, including their impact on plumbing systems.
- Understand how to holistically engineer hot water systems, including understanding code implications, calculating temperature loss, pump selection considerations, contact time, and balancing parallel/complex piping systems.
- Describe theoretical solutions to mitigate risk and understand what clinical evidence is still required.
- Proscribe solutions to different project types based on unique owner demands.