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Tuesday, March 13th 2012, 5:38am

Author: bigyard1703

All valves stuck in open position

I have a system with eight circuits in the front yard (WeatherMatic 12000 series valves, installed 2003) and seven circuits in the back (30-year old valves). My system runs off a water well, with VERY hard water - it leaves white deposits on everything. Last fall I started having trouble with all the WeatherMatic valves opening at the same time when the system turned on - no matter what valve was selected. That trouble continues this spring. The problem isn't the controller. It only puts out vol...