Regional Irrigation Leaders Merge

Lad Irrigation now provides the largest coverage of irrigation products and services in the Columbia Basin with 7 retail locations.


As of July 1, 2019, Valmont Northwest, formerly owned and operated under worldwide Valmont Industries, is now part of Lad Irrigation Company.

Lad Irrigation was founded in 1957 with three employees installing and servicing agricultural irrigation systems in the Moses Lake region. In 1967 Lad Irrigation became a Valley Dealer and began canvasing the region with the Valley Product. Staying true to its beginnings, Lad excelled in pump station and water delivery design and installation and has grown to be a regional industry leader in Irrigation. Lad has steadily grown and expanded with branch offices now in Moses Lake, Othello, George, and Royal City. Lad has expanded its product and service offerings to accommodate market needs for all irrigation system types following their vision of offering the most complete irrigation solutions on the market.

Valmont Northwest began operating in Pasco in 1975, and saw continuous growth in the lower Columbia Basin, eventually adding satellite stores in Sunnyside, Basin City, and Hermiston. Valmont Northwest saw tremendous growth including the most recent construction of a new facility in Pasco, complete with Parts, Sales, welding shop, and training center.

Discussions began in spring 2019 between Valmont Industries and Lad Irrigation to combine the two industry leaders in eastern Washington, providing a united and uniform platform for offering product and service for the entire region. Today the business is overseen by Brek Tolman, General Manager for Lad Irrigation, along with President Randy Gubler.

Lad Irrigation is an employee-owned and operated business with 90+ employees committed to growth and training to better support the communities we serve.

“In the Columbia Basin, water is the lifeblood of all agricultural production.  Our goal is to supply a one-stop design, service and equipment expertise to make the best use of that water – to improve quality of life, yields and efficiency.”- Brek Tolman

Lad Irrigation now maintains 7 locations to serve the Columbia Basin and Yakima Valley including Moses Lake, Pasco, Othello, George, Royal City, Basin City and Sunnyside.

2019 Customer Appreciation BBQs Coming Soon!

Dear Customers,

Lad Irrigation is pleased to announce our 2019 Customer Appreciation Barbecues!  Please join us for great food, product informational displays, and the best discounts of the year on new pivots and parts!

Dates for the 2019 BBQs are:

Moses Lake:  Tuesday, August 27
George:  Wednesday, August 28
Othello:  Thursday, August 29
Royal City:  Friday, August 30

Times:  11 AM to 2 PM for all locations.

Our Fall Parts & Service program begins on BBQ week, and provides discounts on parts and service through the fall of 2019.

Please contact Lad Irrigation or visit us if you would like to know more.  Thank you for your continued patronage!

Spring 2019 Store Hours

Dear Lad Irrigation Customers,

Please note that Lad Irrigation will be open for expanded hours starting Monday, March 25 2019.  Hours at all stores will be as follows:

  • Monday-Friday:  7:30 AM to 5:30 PM
  • Saturday:  8:00 AM to 1:00 PM
  • Sunday:  CLOSED

We look forward to serving you through the coming season!

Fall/Winter 2018 Store Hours

Dear Customers,

Please note the following change of store hours for all Lad Irrigation locations, effective Monday, October 22, 2018:

  • Monday-Friday:  8:00 AM to 5:00 PM
  • Saturday:  CLOSED
  • Sunday:  CLOSED

We look forward to serving you.  Thank you for your business!

Don’t Wait ‘Til Spring–2018 Pump Repair Special Going on NOW!

The beginning of the irrigation off-season is the best time to evaluate and repair your irrigation pumps!  Lad Irrigation invites you to take advantage of our 2018 Pump Repair Special.  From October 1, 2018 until January 31, 2019, we are offering special discounts on repair parts and labor for the following equipment:

  • Centrifugal pumps & motors
  • Vertical hollow-shaft motors
  • Short-set turbine pumps, 20 feet or shorter

Have your pumps repaired now, and go into next spring with peace of mind that when you push “Start,” your irrigation pump will start right up and give you its best performance.  Please call or contact us today, so we can best serve you!

Coming Soon: 2018 Customer Appreciation BBQ

Dear Lad Irrigation Customers,

Please remember mark your calendars for the last week of August, 2018, for the annual Customer Appreciation BBQs!  Join us from 11 AM to 2 PM at any of our four locations:

  • Moses Lake:  Tuesday, August 28
  • George:  Wednesday, August 29
  • Othello:  Thursday, August 30
  • Royal City: Friday, August 31–the newest addition to the Lad Irrigation family

Attendees will find:

  • One-day-only pricing specials on pivots and parts–come in for the best discounts of the year
  • Door prizes and giveaways
  • Product informational displays from Lad Irrigation staff and manufacturers’ representatives

The BBQ opens our annual Fall Parts & Service Special program, which runs from August 28 to November 14, 2018.

Please visit a store, or contact us here for more information.  We look forward to seeing you there!

2017 Customer Appreciation BBQ

Lad Irrigation is pleased to invite its customers to the 2017 Annual Customer Appreciation BBQ!  Join us as we begin our Fall Parts & Service Program, and to secure one-day-only special pricing.  Bring in your parts lists and project ideas, and we will start the ball rolling on maintenance and improvements for next year.

Each of the three stores will hold a BBQ from 11:00 AM to 2:00 PM, on the following dates:

-Moses Lake:  Tuesday, August 22

-George:  Wednesday, August 23

-Othello:  Thursday, August 24

Please contact us for more information.  We look forward to seeing you!

Installing your own Lawn System

by Nate Hecker

By Kent Yamane, Lad Irrigation of Moses Lake (Part 1)


Have you ever wanted your own underground lawn sprinkler system? It’s easier than you think. Let us at Lad Irrigation help you get started.

Homeowner/Residential Systems

Providing you with professional advice and planning assistance, this sprinkler design service covers all the bases with a complete set of sprinkler system plans to help you install your lawn irrigation system with confidence. Your computer drawn design package includes an itemized shopping list of everything you need to complete the project. And if you have a question before, during or after installation, call your local Lad Irrigation dealer.

What You Provide:

1Using this Design Service first involves gathering some important information about your water system and yard. Take a few simple measurements and record the information on a piece of paper. You will be asked to provide: Water available for your irrigation system (water pressure, meter size, service line size) and a sketch and accurate dimensions of your property.) We can also help you with this information.


What You Get Back2

You will receive a detailed, computer-drawn plan specifying the location of irrigation system components such as valves, lines and sprinklers.

Spray patterns for each sprinkler head are also identified for each lawn area. In addition, the design package provides you with a list of supplies needed to complete your installation.




So let’s get started;

To start the process you will need to get the following: The first is your technical and personal information. The second is paper to draw a sketch of your yard. Gather the information requested below in steps 1 through 5. This determines the number and types of sprinkler heads you can operate on each valve zone.


1) What Is Your Water Pressure?

3Screw a pressure gauge onto an unregulated outside faucet. Make sure no water is running anywhere inside or outside your house. Turn on the faucet with the gauge attached. The gauge shows your water pressure in pounds per square inch (psi).

Record: Pounds per square inch (psi)



2) What Is Your Water Meter Size?

4The meter size ( 5/8″,3/4″ or 1″) is usually stamped on the outside of the meter. If you can’t find the size, just call the water utility company and ask for that information.

Record: Write the meter size (5/8″,3/4″ or 1″)





3) How Large Is Your Service Line?

5Find the pipe that runs from the water meter to your house. Wrap a piece of string around the pipe, mark it, then measure how much string it took to go around the pipe. Check your string length on the table below to find your service line size.

Record: 3/4″, 1″ or 1 1/4″ on your worksheet

For example, if your string measures 4″ and you have galvanized pipe, your service line is 1 inch.


Determining Size of Service Line:


4) What Is Your Home’s Water Flow?

6Get a measurable container, like a 5 gallon bucket, make sure no other water is running in or outside the house, turn the faucet on all the way and time how long it takes to fill the container.

Record: Gallons per minute (GPM)

Determine gallons per minute (GPM) with the following formula:



5) Sketch Your Yard


Divide your lot into sections such as front lawn, side lawn, flower beds, slopes, etc., and label all those areas you want watered. Also be sure to include the house, driveway and sidewalks. If you have special watering preference such as bubblers in planting beds or a drip irrigation zone, note that on your drawing as well.

IMPORTANT: The computerized plan you receive will only be as accurate as your drawing.

Next, we will go over how to install your lawn system.