Christoph Lohr

Plumbing engineering is increasingly complex, facing challenges like water conservation and safety concerns, yet it remains underappreciated. A focused industry survey is essential to collect vital data on hiring practices and opportunities for plumbing professionals compared to HVAC. This will help elevate the field's recognition and address the risks of neglecting plumbing expertise.

On May 8th, I presented at the LADWP La Kretz Innovation Center for the ASPE LA Chapter on California’s adoption of the Water Demand Calculator. I spoke about the intersection of water and energy, emphasizing their crucial link in modern civilization.

Plumbing design professionals rely on third-party product standards and qualifications to minimize design risk efficiently. Written specifications often reference product certifications.

The Water Demand Calculator has been adopted in several states and cities, including California and Seattle, and is expanding peak flow rate calculations into commercial buildings. The future looks bright as version 3.0 is in the works for commercial buildings.

In my last column, I focused on talking about how engineered plumbing systems were at a crossroads. This month, I would like to discuss some of the emerging trends in plumbing science.

While many non-plumbing design professionals think plumbing engineering isn’t particularly difficult, real-world data and the latest developments say otherwise.

If you follow me on LinkedIn, you know I am passionate about advocating for plumbing engineers and designers. I have regularly written about the need for plumbing engineers, especially in solving our various water crises and improving our medical gas systems. The lesson is clear: plumbing systems are continually increasing in complexity.

In terms of civic engagement, younger generations have been voting and volunteering at higher rates than previous generations. Regardless of one’s political beliefs, I think we can all agree that politics has become a much bigger portion of daily life. Whether on social media or at our local coffee shop, we all are spending more energy talking about the bigger picture.

Almost 80% of all water consumption comes from two groups: No. 1, thermoelectric power, and No. 2, irrigation (farming). Public supply, which includes industrial buildings, commercial buildings and residences, accounts for only 10%.

In 2012, the International Association of Plumbing and Mechanical Officials (IAPMO), the University of Cincinnati (U of C), and the American Society of Plumbing Engineers (ASPE) began to work on a new sizing technique 80 years in the making. The main drivers were Dan Cole (IAPMO) and Steve Buchberger (U of C), and later Toju Omaghomi (U of C). As part of this effort, hundreds of thousands of data points were taken and evaluated to determine actual human behavior and plumbing fixture use in residential homes.