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PE0724_legionella test.jpg
Code Classroom

Commissioning and Troubleshooting DHW Systems, Part 8

In this last part of the series, we look at DHW distribution system design to effectively control Legionella growth.
July 1, 2024
Ron George

Thermal disinfection or short-term chemical disinfection may kill Legionella bacteria on the surface of the biofilm, but it does not kill bacteria under it. Bacteria can go into a cyst form, encapsulating it inside an amoeba and deep within layers of buildup on a pipe wall covered with biofilm.


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Sponsored Content

JJM ALKALINE TECHNOLOGIES® IS PROUD TO SUPPORT EXPLORE THE TRADES

July 1, 2024
Zurn Elkay Increases PEX Pipe Manufacturing Capacity.jpg

Zurn Elkay Increases PEX Pipe Manufacturing Capacity

June 27, 2024

Zurn Elkay Water Solutions has announced a 50% increase in pipe production capacity.


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Viega Receives Additional NAVSEA Approval.jpg

Viega Receives Additional NAVSEA Approval

June 26, 2024

The company's pressing technology has now been approved for use on CVNs (carrier vessel nuclear).


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ASHRAE Installs 2024-25 President and Newly Elected Officers and Directors.jpg

ASHRAE Installs 2024-25 President and Newly Elected Officers and Directors

June 25, 2024

ASHRAE is pleased to introduce its newly installed 2024-25 Society president, executive committee officers and directors.


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IAPMO Proudly Supports 2024 National High-Performance Buildings Week.jpg

IAPMO Proudly Supports 2024 National High-Performance Buildings Week

June 24, 2024

National High-Performance Buildings Week returns June 24-28 in Washington, D.C.


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 Plastic Pipe Annual Winners Announced 1.jpg

Plastic Pipe Annual Winners Announced

June 24, 2024

The Plastics Pipe Institute (PPI), has announced the winners of its Projects and Members of the Year for 2023.


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Registration Now Open for 2024 ASHRAE Decarbonization Conference .jpg

Registration Now Open for 2024 ASHRAE Decarbonization Conference

June 24, 2024

The ASHRAE Decarbonization Conference will feature five technical tracks with sessions and speakers offering solutions for large buildings.


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International Code Council Files Lawsuit Against DrJ Engineering.jpg

International Code Council Files Lawsuit Against DrJ Engineering

June 24, 2024

The lawsuit asserts trademark infringement and false advertising.


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Watts Celebrates May Beer Bundle Winners and Announces New Summer Prizes.jpg

Watts Celebrates May Beer Bundle Winners and Announces New Summer Prizes

June 24, 2024

As part of its 150th anniversary celebrations, Watts has announced the winners of the May "Beer Bundle" sweepstakes.


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