Water is the whole argument in a sandy yard — too little and October scorches it, too much and you have simply irrigated the aquifer. NAVARRE IRRIGATION INC. works the systems that settle it: zones checked head by head, broken risers replaced, timers set for the hour before sunrise when the air off the sound is still and nothing evaporates. Around here a well-tuned system is the difference between turf that holds green through a dry fall and turf that goes straw-colored in a week. Mowing and trimming keep the lawn itself in shape between service calls. Watching a full spray pattern arc across a yard at first light is its own small reward.