Two dates decide a Castle Rock lawn: the spring morning the system is charged and every head checked, and the October afternoon the lines are blown out before the first hard freeze finds them. Castle Rock Lawn and Sprinkler holds both ends of that string, with the mowing, edging and trimming filling everything in between. Up in Escavera the wind has an open run at things, and one misaimed head will water the driveway all summer; getting the spray pattern honest is half the job. Once the weather turns, the same crew is plowing drives and clearing walks. Water in its season, snow out of the way in the other.