Rookie question here - I had automatic sprinklers installed last year, and had someone come do the blowout/winterizing in the fall. How soon can I turn them back on? As I heard a few others here mention, it's been awfully dry and parts of my lawn could sure use a drink. For those with automatic sprinklers, how do you determine when it's safe to turn them back on? If I need to wait much longer I'll probably need to buck up and do some hand watering.