4/25/2024 5:22:06 PM	HORT 92.1 Course Outline as of Spring 2012	Changed Course
CATALOG INFORMATION
Discipline and Nbr:  HORT 92.1	Title:  LANDSCAPE IRRIGATION
Full Title:  Landscape Irrigation
Last Reviewed:12/12/2023

Units		Course Hours per Week			Nbr of Weeks	Course Hours Total
Maximum	3.00	Lecture Scheduled	2.00		17.5 max.	Lecture Scheduled	35.00
Minimum	3.00	Lab Scheduled	3.00		6 min.	Lab Scheduled	52.50
		Contact DHR	0			Contact DHR	0
		Contact Total	5.00			Contact Total	87.50
		Non-contact DHR	0			Non-contact DHR Total	0

Total Out of Class Hours:  70.00

Total Student Learning Hours: 157.50

Title 5 Category:  AA Degree Applicable
Grading:  Grade or P/NP
Repeatability:  00 - Two Repeats if Grade was D, F, NC, or NP
Also Listed As: 
Formerly:  AG 91B

Catalog Description:

Prepares students to design, install, and maintain a water efficient landscape irrigation system. Topics include basic hydraulics, component identification and terminology, system layout, pipe sizing, and types of valves, heads, and controllers.

Prerequisites/Corequisites:

Recommended Preparation:
Eligibility for ENGL 100 or ESL 100

Limits on Enrollment:

Schedule of Classes Information
Description:

Prepares students to design, install, and maintain a water efficient landscape irrigation system. Topics include basic hydraulics, component identification and terminology, system layout, pipe sizing, and types of valves, heads, and controllers.

(Grade or P/NP)
Prerequisites:
Recommended:Eligibility for ENGL 100 or ESL 100
Limits on Enrollment:
Transfer Credit:CSU;
Repeatability:00 - Two Repeats if Grade was D, F, NC, or NP

ARTICULATION, MAJOR, and CERTIFICATION INFORMATION

Associate Degree:		Effective:		Inactive:
Area:
CSU GE:	Transfer Area			Effective:	Inactive:
IGETC:	Transfer Area			Effective:	Inactive:
CSU Transfer:	Transferable	Effective:	Spring 1988	Inactive:	Fall 2018
UC Transfer:		Effective:		Inactive:
C-ID:

Certificate/Major Applicable: Both Certificate and Major Applicable

COURSE CONTENT

Outcomes and Objectives:
At the conclusion of this course, the student should be able to:

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

1.   Describe soil/water relationship.

2.   Identify system components on an irrigation plan.

3.   Describe and calculate friction loss.

4.   Calculate water pressure and flow at key points in a system.

5.   Explain the function of backflow prevention devices.

6.   Describe the major types of sprinkler heads, valves, and controllers.

7.   Space sprinkler heads for uniform application and specified precipitation rate.

8.   Select pipe material based on use, water pressure, and flow.

9.   Identify and select pipe fittings.

10. Work with others to install PVC pipe, sprinkler heads, and remote control valves.

11. Program a controller for water-efficient system operation.

12. With a small group, perform a water audit to determine system efficiency.

13. Troubleshoot and solve irrigation system problems.

14. Prepare and present a material take-off for an irrigation system.

Topics and Scope

I. Basic hydraulics and water movement through pipe

  A. Static pressure

  B. Dynamic (operating) pressure

  C. Flow (GPM)

  D. Velocity

  E. Friction loss

  F. Calculation of water forces at key system points.

II. Soil and plant water relations

  A. Soil types and drainage/aeration characteristics

  B. Soil water holding capacity and rooting depth

  C. Water use of plant types

  D. Evapotranspiration concept and reference ET

  E. Infiltration rates of soils

III. Water supply

  A. City mains and service lines

  B. Wells, pumps, and storage facilities

IV. Assembly methods and installation of system components

  A. Sprinkler heads and nozzles

  B. Manual and remote control valves

  C. Backflow prevention devices

  D. Pressure regulators

  E. Controllers

V. Pipe and fittings

  A. PVC pipe

    1. Class and schedule

    2. Nomenclature of fittings and connectors

    3. Tools, cements, glues, tapes

    4. Assembly and installation

  B. Polyethylene pipe

    1. Nomenclature of fittings and connectors

    2. Drip and low volume tubing, emitters, and sprayers

    3. Retrofit adapters

    4. Assembly and installation

  C. Galvanized steel pipe

    1. Nomenclature of fittings and connectors

    2. Tools, thread compounds, tapes

    3. Assembly and installation

VI. System planning and layout

  A. Available water pressure and flow at point of connection

  B. Watering zones (hydrozones)

  C. Head selection and placement

  D. Precipitation rates and head spacing

  E. Circuiting heads into valve groups

  F. Location of valves, main lines, and lateral lines

  G. Sizing valves and pipe

  H. Location of controller and sizing power and valve wires

  I. Controller programming and system operation check

VII. Estimating costs

  A. Irrigation plan reading and standard symbols

  B. Material take-off

  C. Supplier catalogs and price lists

VIII. Water-efficient system operation

  A. Water audit method of determining system efficiency

  B. Use of California Irrigation Management Information System (CIMIS)

     and other ET data resources

  C. Implementation of ET data in controller programming

  D. Troubleshooting problems

  E. Adjustments and repairs

  F. Local water agency assistance and resources

Assignments:

1. Install a PVC irrigation system

2. Weekly readings in textbook

3. Calculate static, working, and design pressure (worksheets and related assignments)

4. Identify system components (worksheets)

5. Program a basic residential irrigation controller

6. Field trip participation and reports (2-4)

7. Two to three quizzes

8. Midterm and final exam

Methods of Evaluation/Basis of Grade.

Writing: Assessment tools that demonstrate writing skill and/or require students to select, organize and explain ideas in writing.		Writing 5 - 15%
Field trip reports
Problem solving: Assessment tools, other than exams, that demonstrate competence in computational or non-computational problem solving skills.		Problem Solving 20 - 40%
Calculation, design, and identification worksheets
Skill Demonstrations: All skill-based and physical demonstrations used for assessment purposes including skill performance exams.		Skill Demonstrations 5 - 15%
Programming of irrigation contoller; installation of irrigation system
Exams: All forms of formal testing, other than skill performance exams.		Exams 30 - 60%
Quizzes, midterm, final:multiple choice, true/false, matching items, completion
Other: Includes any assessment tools that do not logically fit into the above categories.		Other Category 0 - 10%
Attendance and participation

Representative Textbooks and Materials:

Irrigation Design Manual. Rain Bird (current online version)

California Landscape Contractor Association ,California Landscape Standards. CLCA, Sacramento, CA.1998( Classic)

Instructor prepared materials

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