One factor in increasing water efficiency in toilets is MaP testing, a test to see how much waste (soybean paste) could be flushed without clogging up. This standard test put all models on a level playing field. Read on to discover how John Koeller and his team established this plumbing benchmark, and what he sees for the future of water-efficient plumbing.

Plumbing manufacturers have made great strides in product innovation over the last 50 years. PMI CEO/executive director Kerry Stackpole explains how these products have helped people globally.

Plumbing Engineer and PHCPPros celebrate the nearly three decades that the Code Classroom columnist has shared his plumbing and piping expertise. 

Join IAPMO’s Pete DeMarco and Hugo Aguilar as they recall a half-century of milestones that have changed the plumbing industry more than any other time in history.

Welcome to the 50th anniversary issue of Plumbing Engineer! Serving engineers in the PHCP industry has been and continues to be an honor.

Looking back to a case from 1973, Steven Nudelman explains this negligence claim where a contractor was forced to pay for additional materials and labor because of an architect’s errors and omissions.

Current codes call for the installation of fire sprinklers in many instances in new construction, but there are still many cases where sprinklers are not required. 

Read this month’s BF Nagy column to learn about ASHRAE Standard 241, Control of Infectious Aerosols (in Buildings) to reduce the risk of airborne disease transmission, such as SARS-COV-2 virus, the flu virus and other pathogens in buildings. Also, discover heat batteries and how they can help with decarbonization. 

As this publication celebrates 50 years of educating plumbing professionals about codes and standards, Ron George focuses attention on how five decades of those codes and standards have shaped the plumbing systems we have today.