Quote:
Originally Posted by shcisamax
Due to this thread, I checked our irrigation system. I don't know how or when it happened but the system had changed from 20 minutes to 31 minutes.
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Probably the automatic seasonal change which is built into the controller. The newer Hunter controllers have a "Solar Synch" computer that contains both a seasonal profile and a humidity sensor. When the profile calls for more watering, the zone run times are adjusted upward. If the homeowner reduces the times, the computer bumps them back up over night. It's designed that way.
There are ways around this, including deactivating the Solar Synch, but they are not obvious. A pro would know.