Well I don't know what kind of cookie cutter everything-and-every-house-is-the-same world you live in... But HERE I have no 2 systems are the same. Shutoffs can be in the ground in a valvebox that hasn't been opened in 5 years (meaning it's likely filled in with dirt). Or the shutoff is in their basement... About half of the ones I service have wells just for the sprinklers, usually on older homes the pump and well is also in the basement, if it's newer it's outside but of course there are no shut off valves because there is no pressure tank. The only way to shut off a running system is to have access to the controler, which is also usually in the garage, or pray for a sudden power outage...wacamaster said:you can always just shut them off from finding the water valve on the side of the house.