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Irrigation 101


Course Code: AL0608WA22

Water shooting out of sprinkler head in the grass

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Date & Time

September 2, 2021
9:00am - 12:30pm EDT (Log-in time: 8:30am EDT)


In this online class, instructor Bob Dobson draws on his 50 plus years of irrigation experience to outline the major system components of an irrigation system. He will discuss design principles, system maintenance, and management procedures. This course provides solid basic knowledge of landscape irrigation systems and a foundation to build upon.

This course also goes beyond just an introduction to irrigation and answers questions such as:

  • Why do we even irrigate the landscape?
  • What are our goals when we irrigate?
  • What are the consequences of over irrigating?
  • What determines if an irrigation system is a good system or bad system?

Come and learn from an experienced irrigation expert who's been there and done it!

Course Agenda

  • 5 Key Elements for Efficient Irrigation
  • What happens to water when it leaves the sprinkler?
  • How much water does it take to maintain a healthy landscape?
  • How do we regulate the amount of water applied to the landscape?
  • Irrigation Uniformity vs Irrigation Uniformity
  • Consequences of overwatering
  • Irrigation System Components
  • Water Supply
  • Point of Connection
  • Limit of supply
  • Backflow Protection
  • Control valves
  • Irrigation dispersion devices
  • Spray heads, rotating stream heads, and rotary heads
  • Micro-spray devices
  • Drip irrigation
  • Timing devices
  • Sensors
  • Design Principles – putting it all together
  • Water supply limitations
  • Backflow device selection
  • Sprinkler/emitter spacing
  • Sectioning / zoning sprinkler heads
  • Distribution network - mainline piping
  • Control valve locations
  • Lateral piping – connecting the dots
  • Control system selection
  • Sensor installation
  • Wiring
  • Irrigation system maintenance and management
  • System activation
  • In-season maintenance
  • System winterization
  • Periodic inspections
  • Water application adjustments
Meet Bob Dobson, Your Irrigation 101 Course Instructor

Bob Dobson, Irrigation 101 Course InstructorBy particpating in this course, you will have the opportunity to learn the ins and outs of irrigation from a true expert! Bob Dobson is President of Middletown Sprinkler Co. in Port Monmouth, NJ, a full service irrigation firm that has been serving the northeast for over 40 years and specializes in water efficient landscape irrigation systems that promote healthy and vibrant landscapes while conserving water and reducing water costs. Bob is an Irrigation Association (IA) Certified Irrigation Designer for residential, commercial, and golf course irrigation systems and an IA Certified Irrigation Contractor.

A leading voice in the irrigation industry, Bob is a past president of the national Irrigation Association, the Irrigation Association of New Jersey, and the New Jersey Turfgrass Association. He is also a past chairman of the national Irrigation Association's Certification Board of Governors and has served on the IA's Board of Directors. He is a member of the New Jersey Landscape Irrigation Contractors Examining Board.

Bob has been honored with the IA's Industry Achievement Award and the Irrigation Association of New Jersey's Lifetime Achievement Award. He was also recognized by the EPA with a WaterSense Excellence Award. He is the co-author of a book entitled Golf Course Irrigation: Environmental Design and Management Practices, which was published in 2003.


**PLEASE NOTE: In order to receive recertification credits for any of our online courses, you will need to upload a photo ID and your license number before the class. You will be sent an email approximately one week prior to the class with instructions. If you do not upload this information, you will NOT be able to attend.

NJ Certified Public Works Manager (CPWM) Credits
3 Technical

Landscape Irrigation Association Licensing Board (New Jersey)

Landscape Architecture Continuing Education System (LA CES)
3.50 hours

Early Registration Fee $195.00 Register on or before August 26, 2021 and save!
Registration Fee $210.00 After August 26, 2021
Cancellation Fee $35.00  

Substitutions are permitted. View cancellation policy.


No meals will be provided.

Accessing this Online Course

This online course will be delivered via Zoom. Registration will close on August 31, 2021. On September 1, registrants will receive an email with a link and instructions explaining how to access the course. On September 2, please log in to Zoom 30 minutes before the course start time for a brief overview of the online format. The course will start promptly at 9:00 am EDT.

Equipment you will need to access this training:

  • A computer, tablet, or smartphone
  • Microphone is necessary if you'd like to ask questions.
  • Webcam is optional but not necessary
  • Speaker is optional but not necessary (you will be able to listen to the presentation by dialing in on your phone if your computer does not have a speaker)

Photo ID Requirement:

Each registrant will be asked provide a photo of him/herself holding their government-issued photo ID. This is required by credit boards so that you may receive credits for participating in this online course.

  • You will receive a reminder email prior to the start of the class with further instructions. Wait to receive these instructions before you attempt to upload your ID.
  • The photo must be clear enough that we can read your name and verify that the person pictured on the ID is in fact the person holding it.
  • After an OCPE staff member reviews the picture and verifies your identity, you will have access to participate in the course when it begins.


  • If this is your first time registering with us, please provide your own unique email address when registering; do not provide an email address that you share with co-workers.

  • If you have previously taken classes with us and have used an email address that you share with your co-workers or supervisor, you must update your account with a unique email address. Click the Register Online button below and sign into your account. On the left side toolbar, click My Account. On the drop-down menu, click Edit Profile/Password. Scroll down to the Email Address field (not the secondary email address field!) and enter your own, individual (not shared!) email address here. Click the Submit button at the bottom to save. If you need assistance updating your account, please email or call (848-932-9271, option 2) our Registration Department.

Note: Pre-registration is required.


Registration will close at 3:00pm on August 31, 2021.

To Pay By Credit Card:

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First time registering online? Click here for step-by-step instructions.

To Pay By Check, Money Order, or Purchase Order:

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For Registration Assistance:

Please call 848-932-9271, option 2.

Program Questions? Contact Us!

Program Coordinator: Joe Canzano, 848-932-7317
Administrative Assistant: Beth Perez, 848-932-7483

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