I bought a Hozelock automatic watering system for my house in the UK, whilst in Spain the damn thing leaked into the battery compartment and it stopped working, these things can't cope with high mains pressure, I have found a workaround for this though. I personally wouldn't have automatic watering for my house in GA as I wouldn't sleep knowing I could get a collosal bill when the equipment leaks. I always turn both valves off on my meter, it doesn't bear thinking about if a major leak started while we are absent.