P2 · area 04 · subtopic 0403
Protection Against Contamination and Treatment
5 percent of the P2 Commercial Plumbing Inspector exam. At 60 questions, that is roughly 3 questions, each with about 150 seconds of budget including the lookup.
- Exam
- P2
- Area
- Water Supply and Distribution
- Weight
- 5%
- Questions
- ~3
What this subtopic covers
Potable water protection against contamination; water treatment system installation.
Outline caveat
ICC's published P2 outline is labeled 2015. Confirm the current outline in the exam catalog before testing.
How to drill it
- Find the chapter of the International Plumbing Code that carries this subject and read it once for structure, not retention: what lives here, what gets sent elsewhere, which tables exist.
- Write your own plain-language phrases for what this subtopic covers, then note the code's terms beside them. Mismatches between the two columns are exactly where exam questions cost you time.
- Run timed lookups: pick a requirement named in the descriptor above, start a stopwatch, find the governing text in your book, stop. Log the seconds. Past two minutes is a miss even when the answer is right.
- Weight your reps to the number above. Roughly 3 questions means this subtopic deserves a dedicated drill session of its own.
2024 IRC Fast-TabsPre-printed tabs for the 2024 edition. Place them yourself; the placement is the study.Check priceThe rest of area 04: Water Supply and Distribution (18%)
| Subtopic | Weight | |
|---|---|---|
| 0401 | Materials, Joints, and Connections | 3% |
| 0402 | Identification, Sizing, and Valving | 5% |
| 0404 | Nonpotable Water Distribution Systems | 5% |
The kit that goes on the table
2024 IRCThe book itself
2021 IRCIf you register on 20212024 Fast-TabsPlace them yourself
Construction Master ProFeet-inch math, no errorsMatch the book and tabs to the edition you register for.Confirm which, first.
The 120-second study sheet
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