What common maintenance task helps in maintaining optimal performance of the sprinkler system?

Cleaning and checking sprinkler heads is vital in maintaining optimal performance of the sprinkler system. Over time, debris, dirt, and mineral buildup can accumulate on and within the sprinkler heads, which can affect the spray pattern and water distribution. If the heads are clogged or malfunctioning, it can result in uneven watering, leading to some areas being overwatered while others are under-watered. Regular maintenance of the sprinkler heads ensures that they operate effectively, promoting healthy plant growth and conserving water by preventing wasteful overspray or under-spray.

While adjusting water pressure and changing the water source might have their importance in some scenarios, those options do not address the immediate and direct impact that cleaning and checking the sprinkler heads have on the system's efficiency. Updating the sprinkler design might be necessary for system upgrades or expansions, but it does not represent a routine maintenance task necessary for ongoing optimal performance.