During installing, set sprinkler heads stage with the soil floor, align arcs clear of hardscape

https://devinlsrs100.opalvector.com/posts/the-complete-overview-to-lawn-sprinkler-installation-for-a-lush-grass

During install, set sprinkler heads stage with the soil surface, align arcs faraway from hardscape, and flush lines sooner than attaching nozzles to stay away from trapped particles reducing efficiency.