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
Architects | Mar 8, 2024
98 architects elevated to AIA's College of Fellows in 2024
The American Institute of Architects (AIA) is elevating 96 member-architects and 2 non-member-architects to its College of Fellows, an honor awarded to architects who have made significant contributions to the profession. The fellowship program was developed to elevate architects who have achieved a standard of excellence in the profession and made a significant contribution to architecture and society on a national level.
Sports and Recreational Facilities | Mar 7, 2024
Bjarke Ingels’ design for the Oakland A’s new Las Vegas ballpark resembles ‘a spherical armadillo’
Designed by Bjarke Ingels Group (BIG) in collaboration with HNTB, the new ballpark for the Oakland Athletics Major League Baseball team will be located on the Las Vegas Strip and offer panoramic views of the city skyline. The 33,000-capacity covered, climate-controlled stadium will sit on nine acres on Las Vegas Boulevard.
Adaptive Reuse | Mar 7, 2024
3 key considerations when converting a warehouse to a laboratory
Does your warehouse facility fit the profile for a successful laboratory conversion that can demand higher rents and lower vacancy rates? Here are three important considerations to factor before proceeding.
Shopping Centers | Mar 7, 2024
How shopping centers can foster strong community connections
In today's retail landscape, shopping centers are evolving beyond mere shopping destinations to become vibrant hubs of community life. Here are three strategies from Nadel Architecture + Planning for creating strong local connections.
Market Data | Mar 6, 2024
Nonresidential construction spending slips 0.4% in January
National nonresidential construction spending decreased 0.4% in January, according to an Associated Builders and Contractors analysis of data published today by the U.S. Census Bureau. On a seasonally adjusted annualized basis, nonresidential spending totaled $1.190 trillion.
MFPRO+ Special Reports | Mar 6, 2024
Top 10 trends in senior living facilities for 2024
The 65-and-over population is growing faster than any other age group. Architects, engineers, and contractors are coming up with creative senior housing solutions to better serve this burgeoning cohort.
Architects | Mar 5, 2024
Riken Yamamoto wins 2024 Pritzker Architecture Prize
The Pritzker Architecture Prize announces Riken Yamamoto, of Yokohama, Japan, as the 2024 Laureate of the Pritzker Architecture Prize, the award that is regarded internationally as architecture’s highest honor.
Office Buildings | Mar 5, 2024
Former McDonald’s headquarters transformed into modern office building for Ace Hardware
In Oak Brook, Ill., about 15 miles west of downtown Chicago, McDonald’s former corporate headquarters has been transformed into a modern office building for its new tenant, Ace Hardware. Now for the first time, Ace Hardware can bring 1,700 employees from three facilities under one roof.
Green | Mar 5, 2024
New York City’s Green Economy Action Plan aims for building decarbonization
New York City’s recently revealed Green Economy Action Plan includes the goals of the decarbonization of buildings and developing a renewable energy system. The ambitious plan includes enabling low-carbon alternatives in the transportation sector and boosting green industries, aiming to create more than 12,000 green economy apprenticeships by 2040.
Lighting | Mar 4, 2024
Illuminating your path to energy efficiency
Design Collaborative's Kelsey Rowe, PE, CLD, shares some tools, resources, and next steps to guide you through the process of lighting design.