Sprinkler heads are designed to handle water pressure - not repeated contact with lawn equipment. Weed eaters, in particular, can quickly wear down plastic parts and knock heads out of alignment. Mowing at the right height and trimming manually when needed helps prevent unnecessary damage. These simple precautions preserve proper spray direction and system efficiency. https://elitesprinklerrepairs.com/how-to-cut-grass-around-sprinkler-heads-without-damaging-them/