The answer to 'irrigation system turning brown' is that there are several common causes, including a lack of water, overwatering, or issues with the irrigation system itself. Symptoms may include dry, discolored grass and plants, as well as standing water in certain areas.
Some potential solutions include adjusting the watering schedule, checking for leaks or blockages in the irrigation system, and ensuring the system is properly calibrated. If the issue persists, it's best to consult a professional landscaping technician who can diagnose and address the underlying problem.