Check sprinkler filters and nozzles for clogs from debris or laborious water scale

https://cesarotbm223.rivetgarden.com/posts/fixing-reduced-stress-and-irregular-coverage-in-sprinkler-equipments

Check sprinkler filters and nozzles for clogs from particles or hard water scale. Routine cleansing restores spray styles, improves efficiency, and prevents misting that wastes water to evaporation.