Quote:
Originally Posted by rjn5656
If you do at 4 am, just check your system routinely. I had a broken head that caused a geyser and didn't know it since it was 4 am. Fortunately one morning there was a real early walker who later came by and told me.
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Having your last zone end at about 6am is the way to go. You want good absorption with as little evaporation as possible .... however, you do not want to have your grass be wet on a reg basis overnight (as in having you last zone end at 2am.
You are correct that undetected leaks can be a prob, when you never see them run. That is way it is a good idea to run all zones manually and observe sprinkler pattern & performance at least twice a year.