Academic Catalog


Foothill College Course Outline of Record

Foothill College Course Outline of Record
Heading Value
Effective Term: Summer 2021
Units: 5
Hours: 37 lecture, 86 laboratory per quarter (123 total per quarter)
Prerequisite: Per California Code of Regulations, this course is limited to students admitted to the Plumbing Apprenticeship Program.
Degree & Credit Status: Degree-Applicable Credit Course
Foothill GE: Non-GE
Transferable: None
Grade Type: Letter Grade (Request for Pass/No Pass)
Repeatability: Not Repeatable

Student Learning Outcomes

  • 1- Properly size a building domestic water supply system.
  • 2- Properly size a building natural gas supply system.


Third-year course of the Plumber & Pipefitting Apprentice Program. Provides the student with a working knowledge of the supply and treatment of potable water, as well as the design and construction of potable water conveyance systems. This course also offers instruction in the use of natural gas and liquid propane gas systems as they apply to the piping industry.

Course Objectives

The student will be able to:
A. Explain the importance of water treatment and purification
B. Demonstrate a working knowledge of municipal water distribution systems
C. Demonstrate a working knowledge of building water supply systems
D. Demonstrate a working knowledge of the principles of domestic hot water systems
E. Explain the properties of gas and combustion process
F. Explain the materials, components and accepted engineering practices associated with gas piping systems

Course Content

A. Water treatment and purification
1. Purification through the natural water cycle
2. Treatment of raw water and removal of impurities
B. Municipal water distribution systems
1. Types of distribution systems
2. Water mains and services
3. Safety procedures when working in trenches
C. Building water supply systems
1. Design
2. Layout
3. Installation
D. Hot water
1. Thermal expansion and pressure control
2. Water heaters and boilers
3. Safety devices and accessories
E. Property of gas
1. Commonly used fuel gases
2. Natural gas conveyance
3. Specific gratuity of fuel gases
4. Air-gas mixtures
F. Components and materials
1. Gas piping systems
2. Orifice sizing
3. Air supply and venting
4. Valves and regulators
5. Electrical systems and controls
6. Appliances

Lab Content

Students will work individually and in teams on concepts, design, installation and accepted engineering practices as they pertain to water supply and gas installations, which will include:
A. Trench and excavation safety
B. Water demand
C. Flow charts and water velocity
D. Friction loss and pressure loss
E. Water system sizing requirements
F. Support of piping
G. Gas combustion efficiency
H. Gas pipe sizing requirements
I. Ignition temperatures
J. Appliance BTU ratings and load factors
K. Vents and vent connections

Special Facilities and/or Equipment

A. Lecture and laboratory classrooms with chalkboard
B. Audio-visual equipment (slide, video, and overhead projectors)
C. Plumbing tools and examples of water distribution and fuel gas components

Method(s) of Evaluation

Hands-on demonstrations
Classroom participation
Completion of chapter assignments
Written examination

Method(s) of Instruction

Classroom discussion
Hands-on demonstrations

Representative Text(s) and Other Materials

International Pipe Trades Joint Apprenticeship Committee. Gas Installations for UA Journeyworkers and Apprentices. 2003.

International Pipe Trades Joint Apprenticeship Committee. Water Supply for UA Journeyworkers and Apprentices. 2004.

These are the standard Plumbing textbooks/workbooks used for this course. Although one or more may not be within 5 years of the required published date, they are the most current books used when teaching this course. We will adopt the next edition of each text, as it is published.

Types and/or Examples of Required Reading, Writing, and Outside of Class Assignments

A. Readings from Water Supply text:
1. Chapter 1, "Water Treatment"
2. Appendix A-15, "Pressure loss in water meters"
B. Readings from Gas Installations manual:
1. Chapter 5, "Valves and Regulators"
2. Appendix B, "Firing and appliance"
C. Writing assignments include:
1. Chapter 1, "Water Treatment" worksheet
2. Water sizing exercises
3. Friction loss in gas piping worksheet
4. Fuel gas pipe sizing diagram