This is my 1st posting to this site. I was recommended by a user from a different forum. I just recently had an irrigation company come out and install a new irrigation system on my 10,000 sq ft lawn at the beginning of this month. They used all Hunter products. They installed 35 PGP stainless steel rotary heads. They set it up for 7 zones with 5 heads per zone. I have been watering my lawn for 30 min/zone. So, that is equivalent to 3 1/2 hours per cycle. Drives me NUTS to take so long!!! I am starting at 3:30am and it completes by 7am right before someone uses the shower in our house. I have stuck a water gauge in my lawn and for 30 minutes it fills about a 1/4 inch of water. So, if I water 4 times a week, I get approx 1 inch of water on my lawn. Am I thinking correctly? The reason why I am writing is because I have used 3 times the amount of water this past month than we usually use in a quarter billing before the system was installed. I could only imagine how much water I would use in the middle of the summer. We recently had Lawn Doctor powerseed our property and they advised us to keep the lawn wet. The person who recommended this site to me said that I am using too much water and to post this message here because there are plenty of irrigation companies who look at these postings and can advise me if my system is setup OK and make wonderful recommendations. Is there anything wrong with what I have? Am I watering too much? With the rotary heads I have, is it correct to have 1/4 for 30 minutes? What changes on watering tips can someone recommend so my wife does not kill me when we get the water bill? Thank you!