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
| Jun 11, 2018
Accelerate Live! talk: ‘AEC can has Blockchains?’
In this 15-minute talk at BD+C’s Accelerate Live! conference (May 10, 2018, Chicago), HOK’s Greg Schleusner explores how the AEC industry could adapt the best ideas from other industries (banking, manufacturing, tech) to modernize inefficient design and construction processes.
| Jun 11, 2018
Accelerate Live! talk: How advanced digital fabrication techniques are driving design innovation
In this 15-minute talk at BD+C’s Accelerate Live! conference (May 10, 2018, Chicago), SOM’s Lucas Tryggestad and Kyle Vansice present the firm’s 3D-printed building project and explore how digital fabrication is pushing design innovation.
| Jun 11, 2018
Accelerate Live! talk: AEC + Data + AI — Poison for some, elixir for others
In this 15-minute talk at BD+C’s Accelerate Live! conference (May 10, 2018, Chicago), predictive analytics expert David Morgareidge offers steps that AE firms can take today if they want to survive AECO digital transformation.
Education Facilities | Jun 8, 2018
Data is driving design for education
In gathering this constant flow of data and recognizing the shifting trends, how can educational institutions make informed choices and smart design decisions that lead to higher efficiency and improved control over capital budgets?
Architects | Jun 6, 2018
Chief of Staff of the Army honors SmithGroupJJR’s Philip Tobey with Outstanding Civilian Service Award
Tobey began his career as a captain and military architect at Headquarters, U.S. Air Force Office of the Surgeon General, with review responsibility for medical projects worldwide.
Architects | Jun 6, 2018
A modest boost in licensed architects in 2017
NCARB’s annual survey shows California and New York leading the pack.
Healthcare Facilities | Jun 6, 2018
French 'Alzheimer’s Village' designed to resemble a medieval bastide
The new facility will provide research on a new way of treating Alzheimer’s patients.
Architects | Jun 5, 2018
Michael Green Architecture joins Katerra
Michael green architecture is a globally recognized leader in mass timber architecture.
Architects | Jun 4, 2018
Changing the way we think about water and design
We have several gaps between the need and desire to have abundant, accessible, clean water and the reality of dealing with on-going and increasing water shortage crises.
Libraries | Jun 1, 2018
New library offers a one-stop shop for what society is craving: hands-on learning
Beyond lending books and DVDs, the Elkridge (Md.) branch library loans household tools like ladders, wheelbarrows, and sewing machines.
