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Plumbing Engineer

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April 2026

Volume: 54
Edition: 4

Multifamily buildings take center stage this month as Christopher Winnie, PE, CPD, and Leah Bosma from SmithGroup explore the complexities of plumbing wall sizing in multifamily construction.

Articles

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Feature

Multifamily Residential Walls: How Big Do They Need to Be?

Plumbing wall depth is often underestimated and must be carefully sized based on pipe materials, pipe diameters, insulation, fire rating requirements and firestopping methods — not only fixture counts.
April 1, 2026

In high-rise residential design, every inch of floor space counts—but underestimating the depth of a plumbing chase can lead to major headaches during construction.


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Women in PHCP 2026

Celebrating 13 women driving change and shaping the future of the plumbing, heating, cooling, and piping industry.
February 22, 2026
Pamela Accetta Smith

Weare proud to celebrate our 2026 Women in PHCP honorees — 13 remarkable individuals who are making a difference, breaking barriers, and helping shape the future of our industry!


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The Invisible Guardians of Museum Collections

How smart plumbing systems can help protect irreplaceable art and artifacts.
March 2, 2026

Discover how advanced plumbing engineering and "smart" leak detection systems act as the invisible guardians of our cultural heritage by protecting irreplaceable museum collections from water damage.


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Jay R. Smith Mfg. Co. — A Century of Strength

For 100 years, the name Jay R. Smith Mfg. Co. has meant more than cast iron and drains. It has meant family, craft and a promise to show up for one another.
April 1, 2026

Celebrating a century of craftsmanship and family values, Jay R. Smith Mfg. Co. reflects on its 100-year journey from a New York basement to a cornerstone of the plumbing industry.


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Columns

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The Future Is Now

North Carolina’s Next Gold Rush is Beneath Our Feet

Cities embracing geothermal energy and shared hydronic networks to create sustainable, interconnected thermal ecosystems are transforming buildings into energy assets and reshaping municipal strategies for net-zero operations.
March 2, 2026
John Mullen

Drawing a parallel to the historic Carolina gold rush, John A. Mullen argues that Charlotte’s shift toward thermal energy networks and geothermal infrastructure is transforming buildings into energy assets and positioning the trades at the heart of the net-zero transition.


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FPE Code Corner

Codes, Standards and Usage of Their Various Editions

Fire protection engineers must often consider newer code editions — even if not yet adopted by local authorities.
April 1, 2026

In the world of fire protection engineering, "the latest and greatest" isn't always the law of the land—but following the minimum requirements of an outdated code could be a costly mistake.


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