The Plumbing Efficiency Research Coalition is set to begin its long-anticipated Drainline Transport in Buildings study. The effort is aimed at determining if decreasing levels of water flow––caused by increasingly efficient plumbing fixtures––are sufficient to clear debris from plumbing pipes.
Essentially, plumbing experts have expressed concerns that the industry has reached a tipping point in terms of the ability of low-flow fixtures to adequately transport waste through drain lines, particularly in larger commercial systems with long horizontal runs to the sewer. Soon, they worry, end-users and professionals will avoid using more efficient products.
That, combined with the fact that such problems have been reported with low-flow plumbing systems in Europe and Australia, has raised many questions.
“I look forward to the results of the Drainline Transport study,” says David C. Smith, PE, plumbing and fire protection department manager, Bala Consulting Engineers, King of Prussia, Pa. “Logic states that less water in the waste stream will not carry the waste as far in the drainage piping.”
By analyzing the drainage issue from a standpoint of slope, flush volume, toilet design, and whether periodic surges of water into a building drain can help, researchers hope to come away with a more informed understanding of the issue.
David E. DeBord, CPD, LEED BD+C, ARCSA-AP, a Chicago-based plumbing and fire protection engineer, wonders if ultimately the industry will need to reduce the size of piping to maintain the minimum velocities required to assure proper scouring, and whether a 1/8-inch minimum pitch per foot of piping is still sufficient in this new world of low-flow plumbing systems.
PERC’s coalition members include the International Association of Plumbing & Mechanical Officials (IAPMO), Alliance for Water Efficiency (AWE), the American Society of Plumbing Engineers (ASPE), the International Code Council (ICC), Plumbing-Heating-Cooling Contractors (PHCC), and Plumbing Manufacturers International (PMI). The group’s impending research is scheduled to be conducted at an American Standard testing facility. +
Related Stories
Market Data | Jul 24, 2023
Leading economists call for 2% increase in building construction spending in 2024
Following a 19.7% surge in spending for commercial, institutional, and industrial buildings in 2023, leading construction industry economists expect spending growth to come back to earth in 2024, according to the July 2023 AIA Consensus Construction Forecast Panel.
Hotel Facilities | Jul 21, 2023
In Phoenix, a former motel transforms into a boutique hotel with a midcentury vibe
The Egyptian Motor Hotel’s 48 guest rooms come with midcentury furnishings ranging from egg chairs to Bluetooth speakers that look like Marshall amplifiers.
Office Buildings | Jul 20, 2023
The co-worker as the new office amenity
Incentivizing, rather than mandating the return to the office, is the key to bringing back happy employees that want to work from the office. Spaces that are designed and curated for human-centric experiences will attract employees back into the workplace, and in turn, make office buildings thrive once again. Perkins&Will’s Wyatt Frantom offers a macro to micro view of the office market and the impact of employees on the future of work.
Healthcare Facilities | Jul 19, 2023
World’s first prefab operating room with fully automated disinfection technology opens in New York
The first prefabricated operating room in the world with fully automated disinfection technology opened recently at the University of Rochester Medicine Orthopedics Surgery Center in Henrietta, N.Y. The facility, developed in a former Sears store, features a system designed by Synergy Med, called Clean Cube, that had never been applied to an operating space before. The components of the Clean Cube operating room were custom premanufactured and then shipped to the site to be assembled.
Performing Arts Centers | Jul 18, 2023
Perelman Performing Arts Center will soon open at Ground Zero
In September, New York City will open a new performing arts center in Lower Manhattan, two decades after the master plan for Ground Zero called for a cultural component there. At a cost of $500 million, including $130 million donated by former mayor Michael R. Bloomberg, the Perelman Performing Arts Center (dubbed PAC NYC) is a 138-foot-tall cube-shaped building that glows at night.
Codes and Standards | Jul 17, 2023
Outdated federal rainfall analysis impacting infrastructure projects, flood insurance
Severe rainstorms, sometimes described as “atmospheric rivers” or “torrential thunderstorms,” are making the concept of a “1-in-100-year flood event” obsolete, according to a report from First Street Foundation, an organization focused on weather risk research.
Multifamily Housing | Jul 13, 2023
Walkable neighborhoods encourage stronger sense of community
Adults who live in walkable neighborhoods are more likely to interact with their neighbors and have a stronger sense of community than people who live in car-dependent communities, according to a report by the Herbert Wertheim School of Public Health and Human Longevity Science at University of California San Diego.
Sustainability | Jul 13, 2023
Deep green retrofits: Updating old buildings to new sustainability standards
HOK’s David Weatherhead and Atenor’s Eoin Conroy discuss the challenges and opportunities of refurbishing old buildings to meet modern-day sustainability standards.
Contractors | Jul 13, 2023
Construction input prices remain unchanged in June, inflation slowing
Construction input prices remained unchanged in June compared to the previous month, according to an Associated Builders and Contractors analysis of U.S. Bureau of Labor Statistics Producer Price Index data released today. Nonresidential construction input prices were also unchanged for the month.
Government Buildings | Jul 13, 2023
The recently opened U.S. Embassy in Ankara reflects U.S. values while honoring Turkish architecture
The U.S. Department of State’s Bureau of Overseas Buildings Operations (OBO) has recently opened the U.S. Embassy in Ankara, Turkey. The design by Ennead Architects aims to balance transparency and openness with security, according to a press statement. The design also seeks both to honor Turkey’s architectural traditions and to meet OBO’s goals of sustainability, resiliency, and stewardship.
