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PE0726_backflow shut-off valve.jpg
Code Classroom

The History of Backflow Prevention and Plumbing Codes, Part 1

Major events — especially the 1933 Chicago World’s Fair amoebic dysentery outbreak — led to better research, plumbing codes and the development of testable backflow prevention devices.
July 1, 2026
Ron George

The history of backflow prevention is a story of public health incidents over the years, in which health officials and members of the plumbing industry learned the dangers and health hazards associated with cross-connections after investigating backflow incidents that sickened and killed many people. 


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SSPMA Announces Scholarship Winners.jpg

SSPMA Announces Scholarship Winners

June 30, 2026

SSPMA has announced that Evelyn Tochtrop and Joel Janssen have been selected as the recipients of the 2026 SSPMA Scholarship Program.


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In Compliance Joins IAPMO Family

June 30, 2026

IAPMO is pleased to announce that In Compliance, a German-based consulting firm specializing in international product compliance requirements and regulations, has joined the IAPMO family.


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ASHRAE Announces 2026-27 President, Officers and Directors.webp

ASHRAE Announces 2026-27 President, Officers and Directors

June 29, 2026

ASHRAE has installed its 2026–27 Society president, along with newly elected officers and directors, during its 2026 Annual Conference in Austin, Texas.


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ASHRAE Recognizes Outstanding Member Achievements at Annual Conference.jpg

ASHRAE Recognizes Outstanding Member Achievements at Annual Conference

June 29, 2026

ASHRAE recognized outstanding member achievements during its Annual Conference, honoring individuals for their contributions to the HVAC&R industry and the Society.


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Bonomi Acquires US-Based Perin Machining Company.jpg

Bonomi Acquires US-Based Perin Machining Company

June 26, 2026

Bonomi's acquisition marks a decisive step towards manufacturing in the United States whilst avoiding tariffs.


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Plastics  Pipe Institute Urges President Trump to Sign 21st Century ROAD to Housing Act.jpg

Plastics Pipe Institute Urges President Trump to Sign 21st Century ROAD to Housing Act

June 24, 2026

Bipartisan housing legislation will help expand housing supply and support safe, sustainable infrastructure.


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McWane Launches Water System Intelligence Platform iHydrant Plus.jpg

McWane Launches Water System Intelligence Platform iHydrant Plus

June 24, 2026

This new system builds on the original iHydrant technology to combine acoustic leak detection, pressure monitoring, and temperature data with machine learning tools.


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AWE Releases Data Center Primer for Water Service Providers.jpg

AWE Releases Data Center Primer for Water Service Providers

June 24, 2026

The Primer provides both technical background and practical guidance to support early, informed involvement by local water providers.


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ASPE September MedGas Workshop Heads to Atlanta.jpg

ASPE September MedGas Workshop Heads to Atlanta

June 24, 2026

Taught by MedGas expert Mark Allen, the workshop provides the 32 hours of training needed to take the ASSE 6060: Medical Gas Systems Designer exam.


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