ICC P2 study plan
ICC P2 · Give each week a clear focus.
8 weeks · About 7 hours per week
Sanitary Drainage, Traps, and Vents
Draw a complete drain-waste-vent isometric for a two-bathroom dwelling and label every trap, vent type, and fitting from each fixture to the building drain.
Compute drainage fixture-unit loads for a supplied fixture schedule, showing each conversion and the arithmetic for the building drain and building sewer.
Classify individual, common, wet, circuit, island, and air-admittance vents, and state the code condition that permits or restricts each.
Write a checklist of slope, sizing, and change-of-direction rules that apply to horizontal drains and building sewers.
Identify prohibited fittings and prohibited connections on a horizontal drain run and justify each with the governing rule.
Your checkpoint
A single-page DWV reference sheet plus a hand-drawn isometric with all traps and vents labeled and fixture-unit math shown line by line.
Sanitary Drainage, Traps, and Vents & Fixtures, Fixture Fittings, and Water Heaters
Solve 15 trap-arm length and vent-takeoff distance problems, showing formula, substitution, answer, and the rule used.
Explain the triggers for backwater valves, interceptors, sump pumps, and sewage ejectors, and where each must be installed.
Build a table of special drainage situations and the extra device or protection each requires.
Cross-check setting and access requirements for eight common fixtures, and note where fixture placement interacts with drainage rules.
Your checkpoint
A worked 15-problem calculation set on trap arms and vent distances, every answer traceable to a cited rule, plus a one-page special-drainage table.
Fixtures, Fixture Fittings, and Water Heaters
Compute water heater requirements: relief valve sizing and placement, thermal expansion control, drain pan sizing and discharge termination, and anchorage.
Verify clearances and rough-in dimensions for water closets, lavatories, urinals, showers, and bathtubs against the code's dimensional tables.
Differentiate fixture fitting requirements for backflow protection, tempering devices, flush valves, and hand-held showers.
Explain the accessibility-linked fixture requirements and identify the fixtures and spaces they govern.
Assemble a defect list for three photographed-in-words fixture installations described only by dimensions and connections.
Your checkpoint
A dimensioned bathroom-group layout drawing with every clearance annotated to a code table value, plus a five-item defect list.
Water Supply and Distribution
Size a water service and distribution system from fixture-unit demand, applying meter, developed-length, and elevation adjustments.
Apply minimum residual pressure and pressure-loss rules at the meter, at the topmost fixture, and at the most remote fixture.
Select backflow prevention devices by hazard level and state where each type is required versus prohibited.
Distinguish approved pipe materials and joint methods for water distribution and list the restriction on each method.
Produce a sizing worksheet showing demand, branch sizes, and a residual pressure check for a multi-story building.
Your checkpoint
A complete water supply sizing worksheet for a three-story, twelve-fixture building: total demand, each branch size, and a passing residual pressure check.
Water Supply and Distribution & Storm Drainage and Special Plumbing Systems
Calculate roof drainage loads using rainfall intensity, including projected area of pitched roofs and vertical wall area contributions.
Size conductors, gutters, and storm drain piping, and determine when secondary or overflow drainage is required.
Size sumps, pumps, and ejectors for a given inflow condition.
Explain the interaction between the domestic supply and fire protection connections and the protection required at that connection.
Your checkpoint
A storm drainage calculation packet for one flat roof and one pitched roof, with rainfall intensity source cited and every sizing step shown.
Storm Drainage and Special Plumbing Systems
Summarize the requirements for nonpotable, gray water, and harvested rainwater systems: cross-connection control, identification, and permitted uses.
Describe the temperature and pressure control requirements for combined domestic and fire systems and for solar thermal water heating.
Compare special-system requirements for health-care and food-service fixtures and list the protective devices each needs.
Draft inspection checkpoints an inspector would verify on-site for each special system covered this week.
Your checkpoint
A two-column comparison chart mapping each special system to its required protective devices, labeling, and inspection checkpoints.
Administration, General Provisions, and Definitions
Define at least 60 code terms and produce a flashcard set with a plain-language gloss for each.
Trace the permit, inspection, and testing sequence, stating who acts at each stage and what constitutes approval.
Outline administrative provisions: permits, fees, inspections, board of appeals, variances, and violation handling, including the inspector's authority and limits.
Explain how the code, referenced standards, and manufacturer's instructions rank when they conflict, and state the correct course of action.
Your checkpoint
A one-page inspection sequence flow chart plus a 60-term glossary in flashcard form.
Administration, General Provisions, and Definitions & Fixtures, Fixture Fittings, and Water Heaters & Water Supply and Distribution & Sanitary Drainage, Traps, and Vents & Storm Drainage and Special Plumbing Systems
Complete two full-length timed mock exams and log every missed item by domain and sub-topic.
Re-drill the three weakest sub-topics until each is solved without notes, twice in a row.
Rehearse code-navigation speed by locating twenty requirements in the code within fifteen minutes.
Audit all prior weekly deliverables and convert each remaining gap into a one-line rule on a final review sheet.
Your checkpoint
A scored 100-question timed mock with a domain-by-domain error log and a one-page last-look sheet.
Milestones
Week 2: Without notes, correctly answer 20 rapid-fire questions on trap seals, vent types, and vent distances at 90% or better.
Week 4: Score 80% or better on a closed-book 50-question exam covering Domains 2, 3, and 4, and size a water service from scratch in under 20 minutes.
Week 6: Complete the storm drainage and special systems packets with zero unresolved sizing steps, and pass a 25-question quiz on Domain 5 at 80% or better.
Week 8: Score 85% or better on both full-length timed mocks with no single domain below 75%.