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Downloadable Files
Controller Valve Troubleshooting Flow Chart
This is a 3 page MS Word document that you can download. The flow chart covers irrigation
controllers with no display, controllers that will not activate valves, irrigation valves that will not
open or barely open and valves that will not close.
Irrigation Controller Cost Benefit Analysis
This spread sheet allows you to compare the cost of 2 different irrigation controllers versus
their water savings relative to the difference in cost for the more expensive controller.
Base Schedule Worksheet
Once you have completed an irrigation audit, this spread sheet will help deterimine the base
watering schedule by filling in a few of the cells with information from the audit.
Solenoid Ohm Readings
This one page download is a list of solenoids, with pictures, that give the average ohm
reading for good solenoids. If the resistance reading is much lower than the average, either
the wiring or solenoid is beginning to short out. If the reading is much higher, accounting
for unusually long wire runs, the solenoid and or wiring is starting to deteriorate.
Landscape Lighting Planner
This document gives general guidlines for the length of wire runs from the low voltage
landscape lighting transformer given the total wattage of the landscape lights.
Adjusting Sprinklers for Sustainable Coverage
Seminar outline that discusses the challenges and solutions for adjusting an irrigation system
in a maturing landscape. While many of the topics address larger commercial systems the
same principles can be applied to smaller irrigation systems.