What are control wires used for in an irrigation system?

Control wires in an irrigation system play a crucial role in the operation of valves. These wires are part of the electrical circuitry that allows the irrigation controller to send signals to the valves, activating or deactivating them as needed. When the controller determines that it is time to irrigate based on pre-set schedules or sensor data, it sends electrical signals through the control wires to open or close the valves. This action regulates the flow of water through the irrigation system, ensuring that areas of the landscape receive adequate moisture according to the designed irrigation schedule.

In contrast, connecting the water source to the system pertains to the plumbing and physical layout of the irrigation infrastructure rather than the electrical components. Monitoring soil moisture levels involves the use of sensors and not control wires specifically. Similarly, controlling water pressure is managed through pressure regulators and other mechanical devices, not through control wires. Therefore, the primary function of control wires is to facilitate communication between the irrigation controller and the valves.