The answer to 'irrigation system disease' is that common causes of irrigation system issues include clogged or damaged sprinkler heads, leaks in the pipes, and mineral buildup in the system. Symptoms may include uneven water coverage, low water pressure, and standing water. Solutions can range from simple DIY maintenance like cleaning sprinkler heads to more complex repairs like replacing pipes or valves.
If the issues are widespread or you're unsure of the cause, it's best to call in a professional landscaping or irrigation specialist. They can diagnose the problem, recommend the right repairs, and get your system running efficiently again.