Anonymous wrote:Something is wrong with your grass, it shouldn’t need to be watered so frequently if at all.
What's wrong with it is it's used to being watered every night.
OP - back off the watering. Rain should be enough for an established lawn, except when there's a long dry spell like we've had. If we have one like this, then water deeply, maybe 2 hours or longer at a time, once a week, or maybe twice. Then the roots will grow deeper, making for a healthier more drought tolerant lawn.
Only new lawns need watering more frequently than that.