During set up, set sprinkler heads stage with the soil surface, align arcs clear of hardscape

https://earth.google.com/earth/d/17Sbe3PRWLZbxzdWfJdg0jXjLeTCFL1pr?usp=sharing

During install, set sprinkler heads level with the soil floor, align arcs away from hardscape, and flush traces until now attaching nozzles to restrict trapped debris chopping performance.