Quote Originally Posted by ray1970 View Post
I think I have some sort of arcing going on. Last year, I had several green "rings" of grass about 14 feet from my sprinkler heads. How do I get "head to head" coverage?

Thanks.
head to head coverage is where the arc from one head reaches all the way to another head so their water arcs are overlapping. arc to arc coverage is where just the water arcs meet. to get this if you don't already you need to either install farther throwing sprinkler heads or additional sprinkler heads. also make sure the increased water demands can be handled by your gpm flow and psi otherwise you will need to add valves and zones