I am in need of your help once again. I have a 38 year old house with a 10 zone sprinkler system. Most of the heads were corroded copper ones that I assume to be 30+ years old. I started swapping them out with Orbit 4" popups from HD/Lowes. The problem is my sprinkler system does not have head to head coverage but does reach the entire perimeter. The old copper sprinklers diffuesed the water so even at max opening, the water soaked the gound from 2" up to 10' from the head. These new Orbit sprinklers soak the ground at 10 feet but it's dry from 0-6 feet from the sprinkler. I talked to Orbit tech support and they said I needed head to head coverage. Does anyone make a reasonable cost popup sprinkler that diffuses the water from say 0-12 feet? I have googles and googled and am wits end. I got my system working and hate to have to rip it all out or double the amount of heads to get proper coverage.