Plumbing3D is a complete plumbing education app for students, apprentices, journeymen, inspectors, and engineers. Explore fully detailed 3D building models, tap any component for instant code-referenced information, and sharpen your skills through nine interactive learning modules.
TWO 3D BUILDING MODELS
Navigate a residential house or a 2-story commercial building in full 3D — switch anytime. Tap any pipe, valve, fixture, or component for its name, function, material spec, and IPC/UPC code section, from the water meter through supply risers, DWV stack, storm drainage, fire suppression, and water treatment. Toggle wall transparency, hide the roof, animate flow, explode the view by system, or overlay pipe-size labels.
SEARCH ANYTHING
Instantly search every component, glossary term, and quiz question from one place.
LEARNING HUB — 9 MODULES
Plumbing Quiz: Test your knowledge of code requirements, pipe sizing, and fixture unit calculations. Best score tracked.
Certification Exam Mode: Timed 40-question mock exam, 70% pass threshold, countdown clock, and a missed-questions breakdown by system.
Glossary: 60+ searchable terms (DWV, PRV, AAV, WSFU, DFU, backflow) with plain-English definitions and citations.
Code Reference: An offline, searchable companion organizing every component's code citation and function by system.
Guided Tour: A narrated walkthrough of water flow from city main to building sewer, with code references at every stage.
Fault Simulator: Activate 10 real-world failures — water hammer, siphoned trap, cross-connection, sewage backup, and more — with live status gauges and an interactive response checklist.
Hydraulic Calculator: Seven calculators for water demand, WSFU/DFU sizing, pipe sizing, pressure loss, recirculation, drainage load, and pump sizing — plus a project mode that saves named calculations and exports a PDF.
Code Violations: 9 documented inspector findings with severity, code section, and remediation — key prep for inspections and licensing.
Diagram Gallery: 45+ technical diagrams — P-trap assembly, DWV and riser diagrams, chiller schematics, mechanical closet cutaways, MEP sections, inspection checklists, and more. Pinch to zoom or view full screen.
YOUR OWN NOTES
Attach notes to any component — a personal study log or jobsite reference, saved automatically.
BUILT FOR IPAD AND MAC
Full Split View and Slide Over support on iPad, and Mac Catalyst support on Mac.
WHO THIS APP IS FOR
Plumbing apprentices preparing for journeyman exams
Journeymen and master plumbers refreshing code knowledge
Building inspectors reviewing IPC and UPC requirements
Mechanical and plumbing engineers
Architecture and construction management students
Contractors preparing for permit submissions
Standards and organizations referenced — including IPC, UPC, ASHRAE, ASME, NFPA, ASSE, ASTM, AMCA, and ASCE — are the property of their respective organizations and used solely for educational purposes. This app is not affiliated with, endorsed by, or sponsored by any of them. Code references and values are for general education only and may not reflect the current adopted edition in your jurisdiction. Always consult the applicable adopted code, a licensed engineer, and your local AHJ before making design, installation, or compliance decisions.
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