Posted 2/8/2014 21:25 (#3674579 - in reply to #3674556) Subject: Re: Old Valley center pivot pic
Central Wisconsin
They did have safety wire if they were more then 2 towers. They would run 12 volts from the pumping motor down the system, If they got out of line a mercury tube would tip and break the 12 volt circuit and shut down the pumper
Old Valley center pivot pic
