The statistics that get passed around in this industry trace back to nothing that holds: no study at all, a document that doesn’t contain them, or a paper its own author retracted. So we run our own: real fieldwork, full-trace audits, exact numbers, the full methodology, and the limitations stated on the page.
Studies publish here when a dataset exists, never on a calendar, and each one stays at a permanent URL so you can cite it with a link.
We ran eight typical homes and apartment buildings through both published pipe-sizing methods. Hunter’s 1940 fixture-unit curve specifies 1.15x the modern peak demand figure for a one-bath starter home, 2.23x at the median, and 6.54x for a 100-unit building: the gap grows with building size.
8 configurations · 2 published methods · computed August 2026
We followed nine of the industry’s favorite missed-call statistics back to their sources. Three trace to no study at all, three are credited to documents that don’t contain them, two come from one white paper its own author retracted, and one is a vendor’s own survey whose evidence has vanished.
9 claims traced · fieldwork at the desk · July to August 2026
StatisticsDesk audit2026
3 · no study found3 · not in the cited document2 · retracted by its author1 · evidence vanished
We called 133 New Jersey plumbing shops during business hours, most of them twice. A person ever answered at 23, about 1 in 6, and 32 of the 133 listed numbers were dead.
n = 133 businesses · 33 towns, northern New Jersey · fieldwork July 2026
PlumbingField calls2026
23 · a person answered78 · never answered32 · dead numbers
Citing this work
Every study page carries a suggested citation, its sample construction, and a limitations section, because a number without its method is folklore. Quote the figures exactly as published, with a link to the study page.
Methodology questions: hello@getbeepback.com. Data is collected by Sena Engineering LLC, the company that builds BeepBack; results are aggregate and anonymized, and no study names a business we called or tested.
Somewhere out there tomorrow, a phone rings at 2:14.