AZ Plumber study plan
AZ Plumber · Give each week a clear focus.
8 weeks · About 7 hours per week
Sanitary Drainage, Venting, and Storm Drainage & Piping Materials, Fittings, Joints, and Supports
Diagram the sanitary drainage stack, branch, and vent relationships from memory, labeling fixture drain, trap arm, vent connection, and stack vent locations
Compute developed length and slope requirements for horizontal drain runs at 1/4 inch per foot and 1/8 inch per foot, showing fall over given run lengths
Classify the common drainage fittings (wye, combination wye and eighth bend, sanitary tee, long-sweep quarter bend) by where each is permitted in drainage versus vent service
Identify the support spacing and hanger requirements for horizontal and vertical DWV pipe in at least two common materials
Build a one-page reference sheet mapping each drainage fitting and support rule to its application
Your checkpoint
A hand-drawn DWV riser diagram with fitting callouts, slope calculations shown, and a completed fitting-and-support reference sheet
Sanitary Drainage, Venting, and Storm Drainage & Traps, Interceptors, Backflow Prevention, and Cross-Connection Control
Size a vent system for a multi-fixture branch, distinguishing individual, common, wet, and circuit venting arrangements
Calculate the required size and depth of a building trap or interceptor serving a specified fixture load
Explain the function and installation requirements of each trap type, including the fixture trap seal depth and prohibited trap configurations
Trace a backflow scenario through a cross-connection and select an appropriate prevention device for each hazard level
Compute storm drainage flow for a given roof area and rainfall intensity and select a conductor or leader size
Your checkpoint
A worked vent-sizing and storm-drainage problem set with all calculations, plus a backflow device selection table keyed to hazard level
Water Supply and Distribution Systems & Water Heaters, Temperature Control, and Thermal Expansion
Size water supply piping for a specified fixture-unit load using demand tables and pressure-loss data
Determine minimum and residual pressure requirements at fixtures and at the building supply, accounting for elevation and friction loss
Select water heater type and capacity for a stated occupancy and peak-hour demand
Explain temperature control and thermal expansion protection requirements, including relief valve placement and expansion tank sizing
Identify the materials and installation requirements for water distribution piping, including joints and supports
Your checkpoint
A complete water supply sizing worksheet for a sample building, with a matching water heater and thermal expansion selection summary
Piping Materials, Fittings, Joints, and Supports & General Regulations, Code Administration, and Licensing Requirements
Compare the approved materials for water, drainage, and gas piping and identify where each material is restricted
Describe the joint-making method and testing requirement for each common piping material
Explain the permit, inspection, and licensing process steps from application through final inspection
Identify the roles and responsibilities of the authority having jurisdiction and the licensed contractor
Summarize the code administration provisions covering plan review, variances, and enforcement
Your checkpoint
A materials-and-joints comparison matrix covering at least six piping materials, plus a flowchart of the permit-to-final-inspection process
Fuel Gas Piping and Gas Appliance Connections & Plumbing Fixtures, Fixture Fittings, and Fixture Traps
Size gas piping for a specified appliance load using length-of-run and pressure-drop tables
Identify the requirements for gas appliance connectors, shutoff valves, and sediment traps
Explain combustion air and venting requirements for gas appliances in a confined space
Select and install fixture fittings and fixture traps that meet accessibility and flow requirements
Describe the installation requirements for water closets, lavatories, sinks, and floor drains including trap seal protection
Your checkpoint
A gas piping sizing calculation for a three-appliance installation with a labeled sketch, plus a fixture installation checklist
Isometric Drawings, Plan Reading, and System Layout & Safety, Tools, and Job-Site Practices
Read a plumbing plan and extract fixture locations, pipe sizes, and riser information without assistance
Produce an isometric sketch of a simple bathroom group showing drain, vent, and water lines in correct orientation
Identify the personal protective equipment and hazard controls required for common plumbing tasks
Describe safe procedures for trenching, soldering, and working with gas piping
Select the correct tool for a given task and state its safe use and maintenance requirement
Your checkpoint
A hand-drawn isometric of a bathroom group with all pipe sizes labeled, plus a job-hazard analysis for a simulated installation task
Sanitary Drainage, Venting, and Storm Drainage & Water Supply and Distribution Systems & Traps, Interceptors, Backflow Prevention, and Cross-Connection Control
Solve mixed problems that combine drainage, venting, and water supply sizing in a single building scenario
Diagnose common cross-connection and backflow failures and prescribe the correct correction
Verify trap seal protection and venting for a fixture group against code requirements
Complete timed practice sets on the heaviest domains and record accuracy by domain
Review and correct every missed item from prior weeks' deliverables
Your checkpoint
A timed 60-question practice set with a scored breakdown by domain and a written list of corrections for every missed item
General Regulations, Code Administration, and Licensing Requirements & Plumbing Fixtures, Fixture Fittings, and Fixture Traps & Water Heaters, Temperature Control, and Thermal Expansion & Fuel Gas Piping and Gas Appliance Connections & Isometric Drawings, Plan Reading, and System Layout & Safety, Tools, and Job-Site Practices
Complete full-length timed practice exams under exam conditions
Review all missed items and close remaining knowledge gaps in the lighter domains
Rehearse code administration and licensing facts until recall is immediate
Confirm readiness by achieving a consistent passing score across two consecutive practice exams
Finalize a personal exam-day plan covering timing, pacing, and reference use
Your checkpoint
Two completed full-length practice exams with scores, a final gap-closure log, and a written exam-day pacing plan
Milestones
Week 2: Score at least 75 percent on a self-made 30-question quiz covering sanitary drainage, venting, storm drainage, traps, and backflow
Week 4: Complete the materials matrix and permit flowchart with no unresolved items, and score at least 75 percent on a mixed quiz covering domains 1, 2, 4, 5, 6, and 7
Week 6: Produce a correct isometric drawing and score at least 80 percent on a 40-question mixed quiz spanning all domains covered so far
Week 8: Achieve a passing score on two consecutive full-length timed practice exams with no domain below 70 percent