Classes > Designer/Manager

Designer/Manager School of Irrigation


The Designer/Manager School is a comprehensive educational program offering a variety of classes designed for both agricultural and landscape irrigation professionals, taught by the very people who developed them - Charles M. Burt (Ph.D., P.E., CID); Stuart Styles (D.Engr., P.E., CID); Franklin Gaudi (Ed.D., CID, CAIS), and Dan Howes (Ph.D., P.E.). The classes are held at the ITRC facilities at Cal Poly State University, San Luis Obispo.


Our objective is to offer you an excellent opportunity to:



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ITRC does not accept credit card payments via fax; to pay using a credit card, please register online or call (805) 756-2434




Agriculture Courses

All fees include class materials and software.

Basic Soil, Plant, & Water Relationships     July 31, 2019

Soil texture and structure, water holding capacity, retention, intake rates, evaporation, transpiration, soil classification, measurement of soil moisture and tension

Irrigation Scheduling, Salinity, & Drainage    Aug 1-2, 2019

(Suggested prerequisite: Basic Soil, Plant & Water Relationships)
ETo and crop coefficients, practical irrigation scheduling, how efficiency and uniformity influence scheduling, drainage concepts and layouts, salinity, leaching reqeuirements, reclamation.

Fertigation     Aug 12, 2019

The class will cover new techniques in the control and application of fertilizers through irrigation systems and strategies to conform with the intent of the new nitrogen regulations in California. Other topics will include nitrogen fertilizers, challenges with phosphorus and potassium applications, growth enhancers, and organic-compliant ways to keep drip systems clean. Increasing yields per acre-foot of evapotranspiration (ET) through better fertility management, will also be discussed.

Row Crop Drip Irrigation     Aug 13, 2019

Design layouts, flushing, fittings, how design relates to management, hose installation, retrieval

Drip/Micro Irrigation Design     Aug 14-16, 2019

(Suggested prerequisites: Basic Soil, Plant, & Water Relationships, Basic Hydraulics I & II, Pumps I)
Topics will include: filtration, step-by-step design procedure of hardware selection and hyraulics, drip/micro system design, SDI for trees and vines, plugging prevention. Features ITRC book Drip and Micro Irrigation for Trees, Vines, and Field Crops (4th Ed.) and software, Drip Hydraulics.

Sprinkler, Border Strip, and Furrow Irrigation     TBD

Topics will include: the unique aspects of proper irrigation timing with these irrigation methods; how to control the amount of water that infiltrates; reducing losses; tailwater return systems; pressures, sprinkler types, and spacings for sprinklers; how to get a uniform irrigation with all the methods; modifying infiltration rates; common possibilities for improving efficiencies (along with their limitations).

Drip System Troubleshooting     TBD

Drip system troubleshooting

Drip System Specifications     TBD

Drip system specifications



Agriculture/Landscape Courses

All fees include class materials and software.

Basic Pipeline Hydraulics I     Aug 5, 2019

Pipe material & sizes, energy equation, friction, elevation changes, and basic spreadsheet operations.

Basic Pipeline Hydraulics II     Aug 6, 2019

Mainline computations, tapered pipe, branches, hydraulic grade lines, problems using spreadsheets, minor losses.

Pumps I (Summer)    Aug 7, 2019

Types of rotating pumps, pump terms, pump curves, pumps in series and parallel, system curves, TDH computations for vertical and booster pumps, efficiency, WHP, BHP, input HP, pump selection from catalogs, trimming impellers, answers to common pump questions.  This class is also offered every summer as part of our Irrigation District School of Irrigation series.  Click here for more information.

Pumps II (Summer)     Aug 8-9, 2018

This class is sponsored by the USBR, Mid-Pacific Region (Suggested preprequisites: Basic Pipeline Hydraulics I & II, Pumps I)
Net positive suction head, submersible pumps, well screens, shaft losses, shaft sizing, maintenance and troubleshooting, variable frequency drive (VFD) basics, retrofitting VFDs on existing motors, affinity laws for variable speed operation, how to estimate savings from VFDs, hands-on VFD application, power factor correction, inlet and sump design.  This class is also offered every summer as part of our Irrigation District School of Irrigation series.  Click here for more information.

Landscape Sprinkler Design     TBD

Hybrid course covers irrigation system components, soil/plant/water relationships, distribution uniformity, application rates, sprinkler placement & selection, and irrigation scheduling. Online portion will cover necessary prerequisites in preparation of a 2-day design example in class. The 2-day class at Cal Poly is optional.

Landscape Irrigation Auditor     TBD

(Suggested prerequisites: Basic Soil, Plant, & Water Relationships, Basic Pipeline Hydraulics I & II)
Steps performed in an audit to determine distribution uniformity (DU) including site inspection and tune-up, system test, calculating system performance and using performance values to schedule irrigations. An irrigation audit will be conducted in class.