🔧 Plumbing · UA Local
Plumbing Code Practice & Journeyman Exam Prep
Sharpen your plumbing code — drain and vent sizing, fixture units, and IPC requirements — through real rough-in puzzles. Free journeyman-plumber practice for UA apprentices.
What you'll practice
- ✓Drain, waste, and vent (DWV) sizing by fixture units
- ✓Water-supply sizing (WSFU) and pressure
- ✓Backflow prevention and cross-connection control
- ✓Slope, cleanouts, and trap requirements
Code standards covered
Drainage, waste, and vent — the backbone of the license exam
Every plumbing exam leans hard on DWV, and so does CraftIQ. Puzzles hand you a rough-in and make you commit: size the drain by the fixture units it serves, decide whether that vent configuration actually protects the trap seal, spot the missing cleanout before the inspector does. The questions are framed the way the International Plumbing Code frames them — fixture units, developed length, slope, trap and vent relationships — because that is the language the journeyman exam speaks. When you miss, CraftIQ shows the correct answer with the code section behind it, so a wrong tap teaches more than a lucky guess. Spot-the-violation and what's-missing puzzles train the eye you need on a slab inspection, not just the recall you need on paper.
Protecting the potable system
Water supply is where plumbing stops being pipe work and becomes public health. CraftIQ drills water-supply sizing by fixture demand, pressure reasoning across a building, and the discipline of cross-connection control: where backflow protection belongs, which hazards demand which class of device, and why an air gap beats hardware when you can get one. These are the questions that separate a licensed plumber from a handyman — the code exists because contaminated water has hurt people, and the trade takes that seriously. CraftIQ's puzzles put you in those judgment calls repeatedly until the reasoning is automatic, with every answer tied back to the IPC provisions that govern it. Sizing puzzles keep the supply-side fixture-unit habit sharp the same way drainage-fixture-unit reasoning anchors the DWV side.
From first-year rough-in to the journeyman card
CraftIQ is free for individual apprentices and bilingual — every puzzle plays in English or Spanish while keeping the technical vocabulary in English, because that is the vocabulary the exam and the jobsite use. UA locals and JATC training centers can license it for a full cohort, with instructor dashboards showing exactly which code areas a class keeps missing. All plumbing content has been code-audited against the standards it cites, and timed exam-prep mode builds the pacing you need before you sit for the journeyman plumber exam. Puzzle types run the range — sizing calcs, sequence-the-rough-in, spot-the-violation — so drainage theory and field judgment develop together instead of one outrunning the other.
Start practicing freeCodes & standards for this trade
- International Plumbing CodeEvery section CraftIQ tests, explained in plain language →
- International Fuel Gas CodeEvery section CraftIQ tests, explained in plain language →
- ASME Codes & StandardsEvery section CraftIQ tests, explained in plain language →
- International Residential CodeEvery section CraftIQ tests, explained in plain language →
Prepping for a license? Try the timed exam-prep mode.
Frequently asked questions
Does CraftIQ use the IPC or the UPC?
Puzzles are primarily framed around the International Plumbing Code, with the concepts — fixture units, venting, trap protection, backflow prevention — that carry over to UPC jurisdictions. Always verify details against the code your jurisdiction has actually adopted; CraftIQ teaches the reasoning, your local code sets the numbers.
Is CraftIQ enough to pass the journeyman plumber exam?
It is the practice layer, not the whole preparation. Combine it with your JATC coursework, OJT hours, and a current code book. What CraftIQ adds is volume and honesty: hundreds of code-audited reps with instant feedback, plus a timed exam mode that mirrors real test pacing.
Does CraftIQ cover backflow prevention?
Yes — cross-connection control is one of the core plumbing topics. Puzzles cover where protection is required, matching device types to hazard levels, and spotting unprotected connections in real installation scenarios. The code library explains the relevant IPC sections in plain language.
Do I need to carry a code book to use CraftIQ?
No. Every puzzle is self-contained and every answer explains the section it cites. But CraftIQ deliberately builds the habit of thinking in code sections, so when you do open the book — on the job or in the exam room — you already know where to look.