During deploy, set sprinkler heads level with the soil surface, align arcs clear of hardscape

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

During set up, set sprinkler heads degree with the soil surface, align arcs far from hardscape, and flush lines until now attaching nozzles to sidestep trapped particles slicing functionality.