[N44125]

Had our sprinkler / irrigation system tuned-up by Jim Baumgartner (352-504-2317) which is the only way to go...excellent, reliable and reasonable. One item he pointed out to us is that these systems have a 9V back-up battery. Our's had never been changed since our home was built 8 years ago. It does not run the system, it only retains the memory of the schedule, times, days, etc. However if you lost the electricity on that particular circuit you would have to reprogram the system. Simple and cheap DIY fix...snap open the lower door on the controller box in your garage and replace the battery...similar to a smoke detector battery change.