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… Continue reading Understanding the ESP timer’s program selector switch

Rain Bird ESP Timer Custom Cycle

The Custom Cycle on a Rain Bird ESP timer waters on the days of the week that you select. Here are the instructions for programming the the Rain Bird ESP Series timer on the Custom Cycle. Note: The numbers in this list correspond to the graphics on the left. 1. Select the program you want.… Continue reading Rain Bird ESP Timer Custom Cycle

Rain Bird ESP Timer Troubleshooting: Alarm LED Is Lit

Possible cause: 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 seasonal adjust % value has been set to zero.… Continue reading Rain Bird ESP Timer Troubleshooting: Alarm LED Is Lit

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… Continue reading Gallons Per Minute

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… Continue reading Understanding Sprinkler Hydraulics