Ok,day i don't visit this board to much. But I had an awesome day yesterday doing blowouts. We could'nt figure out why some zones wern't blowing out right.Turns out that when we aerated the lawn a couple weeks prior the aerator hit two lateral lines that were about 2" down at most. I got a kick out of it since we lost the install to a local company who does this kind of thing all the time. We love to fix thier stuff. I took pics and if i can ever figure out how to post them I will. Do you guys run into this alot? its a first for me. I know I'm pretty green in irrigation but I would never do something like that. we are 10-14" down for our pipes. Never an issue.