Getting to desperate: well, our water pipe that feeds off the canal was busted; don't know how but that led to a dead pump ( now replaced) and air in the lines. Ugh! We called Shaffers; they are at least 3 weeks out. My yard will be dead by then. Does anyone have a tracer that we may borrow to find out valve boxes? Or is anyone a wiz at sprinkler systems? Please, I am begging. We are not looking for free services.