Sep 062013
Understanding the ESP timer's program selector switch

With 3 programs, 4 start times available per program, and advanced watering cycles, it’s easy to see why programming a Rain Bird ESP timer can be a daunting process. I’ve been getting many questions lately about the use of the program selector switch on the Rain Bird ESP timer. There is a common misunderstanding that […]

Dec 272012
Rain Bird ESP Timer Troubleshooting: Alarm LED is lit

Possible cause: Click on the image for a larger view. Shorted Station – A short circuit in the solenoid or valve wiring has disabled the station. The display will show “# Err,” where # is the valve number at fault. Identify and repair the fault in the circuit. Seasonal Adjust is at 0% – The […]

Mar 182012
Typical Sprinkler Head Assembly

Click on the image on the left to see an enlarged view of the image. Lately I have been receiving a lot of questions concerning how to add a sprinkler head to an existing sprinkler zone. The easiest way to accomplish this is to find where an existing sprinkler line is located and cut in […]

Aug 082011
Gallons Per Minute

In sprinkler systems, gallons per minute (gpm) or liters per second (L/s) is simply the volume of flow (how much) water is moving through your sprinkler system. If you are installing a new sprinkler system, maintaining your current system, or retro-fitting an existing system you need to know how many gallons per minute are available […]

Jul 112011
Understanding Sprinkler Hydraulics

Periodically I will be doing posts on understanding how water behaves in your sprinkler system and hopefully this will help you understand what is going on with your sprinkler system when there are problems. In this post I will begin with understanding the basics of hydraulics. Hydraulics is simply the study of fluid behavior in […]