What is the best way to test for proper valve operation?

The best way to test for proper valve operation is to manually activate each valve from the controller. This method directly engages the valve, allowing the technician to observe whether each valve opens and closes as intended. By doing this, you can confirm that the electrical signals from the controller are properly reaching the valves and that there are no blockages or mechanical issues preventing the flow of water.

Other methods, such as checking the soil moisture level, inspecting the sprinkler heads, or examining the water pressure, provide indirect information about the irrigation system. While they are valuable for diagnosing issues like inadequate coverage or water supply, they do not directly confirm if the valves themselves are functioning correctly. A manual activation ensures that each valve receives the command to open or close, thus verifying their operational status effectively.