Because of the recent power failure some of you may have noticed that your sprinklers are being activated at odd times of the day.

Thanks to my neighbor, Paul Fisher, I discovered that my Irrigation Controller had lost the correct time and date as a result of the power failure. Paul then showed me how to activate the 3V Lithium Battery that comes with the Irrigation Controller. It will now retain the correct time and date in the event of another power failure.

For those of you who do not have, or have not read, the manual that comes with the Irrigation Unit, I have reproduced the page dealing with activating the battery.

Click to enlarge.

If your Irrigation Controller retained the correct time of day, that means either you or the installer activated the battery.