The answer to 'when to irrigation system' is that the best time to set up or activate your home's irrigation system is in the spring, typically between March and May, depending on your local climate. This ensures your sprinklers and irrigation components are ready to efficiently water your lawn and landscape as the growing season begins.
Before activating your system, it's important to perform a thorough inspection to check for any damage or issues that may have occurred over the winter. This includes checking for leaks, ensuring all valves and sprinkler heads are functioning properly, and making any necessary adjustments or repairs. Additionally, you'll want to set your irrigation controller to the appropriate watering schedule based on your local climate and plant needs.