Orland Park sits on heavy clay, and in a dry July that clay bakes hard and the turf turns the color of straw two weeks before anyone is ready for it. John's Sprinkler Systems keeps the water where it belongs — heads set to reach the corners, zones tuned so the parkway strip is not drowning while the back yard goes thirsty. Spring means startup and a walk of every zone with the controller running; autumn means blowing the lines clear before the first hard freeze finds them. The stretch between is repair work: a cracked head, a soggy patch, a zone that quit for a reason that has to be tracked down. A lawn that stays green through the hot end of summer usually has somebody like that standing behind it.