Somewhere in April the laterals fill and the sound of moving water comes back to the flats around Redmond — the season announcing itself the way it always has in this irrigated corner of the desert. AP Lawn Care and Irrigation opens the year the same way: valves checked, heads straightened, spray patterns walked zone by zone until nothing is watering the driveway. From there it is mowing, edging and feeding through a summer that asks a great deal of both the grass and the pipe beneath it. Come October the compressor comes out and the lines are emptied ahead of the first hard freeze. A lawn out here is really a plumbing story with green on top, and there is satisfaction in telling it well.