Goal:

The goal of this course is to teach inspectors how to perform an inspection of the plumbing system of a home. It includes a review of leaks, inadequate water supplies, water contamination, and incorrect installations of components.

Objectives:

Upon successful completion of this course, the student will be able to:

• inspect the various components of the plumbing system;

• identify the components of the plumbing system;

• understand how the components of the plumbing system function and perform;

• describe to clients defects observed at the plumbing system.

Course includes:

• 36,339 words;

• 6.6 hours of training video;

• inspection and writing assignment;

• research and writing assignment;

• 88 quiz questions in 13 quizzes;

• 70-question final exam (drawn from a larger pool);

• instant grading; and

• a downloadable, printable Certificate of Completion.

Inspectors will learn the following: 

• InterNACHI Standards of Practice

• Glossary of Terms

• Fixtures

• Minimum Number of Plumbing Fixtures

• Access for Cleaning

• Clearance for Water Closets, Lavatories

• Connections, Flanges and Joints

• Overflows

• Automatic Clothes Washer

• Bathtubs

• Glazing

• Bidets

• Dishwashing Machines

• Floor and Trench Drains

• Food Waste Grinders

• Laundry Tubs and Trays

• Lavatories or Washbasins

• Showers

• Sinks

• Urinals

• Water Closets

• Whirlpool Tubs

• Faucets and Other Fixtures

• Faucet and Fixture Temperature Control

• Fixture Tailpieces

• Water Heaters

• Water Heater as a Space Heater

• Sacrificial Rod

• Drain Valves

• Access

• Water Heater Labeling

• Tankless Water Heaters

• Tankless Coils from Boilers

• Water Heater Tank Locations

• Confined Space and Combustion Air

• Seismic Supports for Tanks

• Water Valves for Tanks

• Dip Tube Hole Inside Tanks

• Fuel Shutoff Valves or Electric Disconnect

• TPR Valves

• Expansion Tank on Boiler

• Discharge Pipe on TPR Valve

• Water Leak Catch Pan

• Hot Water Tank Defects

• Potable Water

• Wells

• Potable Water Contamination

• Solar Energy

• Water Service Pipe

• Water Distribution Pipe Material

• Water Pressure Regulator

• Water Pressure, Friction and Others

• Water Consumption

• Size of Water Supply Pipe to Fixture

• Thermal Expansion Control

• Gridded and Parallel Water Distribution

• Lead Content of Pipes and Fittings

• Water Distribution Pipe

• Valves

• Hot Water

• Sanitary Drainage

• Trenching

• Separate Sewers

• Sewage Treatment

• Sanitary Drainage Pipe Material

• Slope of Drainage Pipe

• Change in Drain Pipe Size

• Breakage and Corrosion of Pipes

• Fittings

• Prohibited Joints

• Cleanouts

• Drainage System Sumps and Ejectors

• Vents

• Air Valves

• Vent Distances

• Vent Terminations

• Traps

• Minimum Trap Size

• Prohibited Traps

• Trap Cleanout

• Trap Defects

• Protection

• Protection Against Pipe Damage

• Plumbing Support

• Storm Drainage

• Dryer System

• Dryer Exhaust System

• Oil Storage Tanks

• Underground Fuel Gas Piping

• Support for Fuel Gas Piping

• Fuel Gas Sediment Traps

• Shut-off Valves for Fuel Gas Appliances

• Fuel Connectors

• Fuel Gas Venting Systems

• Insulation Shields

• Factory-Built Chimney Serving Fuel Gas

• Chimney Connection

• Fuel Gas Vent Terminations

• Automatic Dampers

• Procedural Inspection Checklist

• Checklist for Bathroom Fixtures

Residential Plumbing Overview for Inspectors Course 

Course # 3500

nachi.org/plumbingcoursereleased2008

Activity

Assignments

Estimated hours for the average student

Academic Engagement

Reading online course material at 140 words per minute

10.1

Watching and listening to instructional video

6.6

Taking quizzes

2.7

Taking the exam

2.1

Conducting a directed and independent inspection study performed according to the Standards of Practice, including the development of an inspection report

4.0

Submitting an inspection and writing assignment

0.5

Submitting a research and writing assignment

0.5

Total

26.5

Preparation

Studying & reviewing instructional material in preparation for taking quizzes and exam

27.0

Reading the downloaded student course book including taking the quizzes with the book

10.0

Reading, research, and studying related to completing the research and writing assignment

4.0

Studying and preparing for inspection processes according to a Standards of Practice, including capturing and storing digital images with a camera or device, making observations, evaluating conditions, deducing, formulating opinions, communicating observations in written form, attaining competency in performing inspections and using an inspection checklist or software and other inspection tools in producing a report.

10.0

Homework

Total

51.0

Sub Total

77.5

Overall Total

• 78.0 clock hours

• 78.0 InterNACHI CE credit hours 

• 7.8 CEU