From: gherold@teachspin.com   
      
   On Sunday, January 14, 2018 at 10:27:32 AM UTC-5, FreeMan wrote:   
   > Google   
   >   
   > dog water dish auto fill   
      
   Yeah lotsa level sensing.  My outdoor wood furnace had a magnet   
   that floated in styrofoam, and turned on the reed relay.   
   (styrofoam, or whatever it was, became water logged over the   
   years.)   
      
   George H.   
   >   
   >   
   >   
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    * Origin: you cannot sedate... all the things you hate (1:229/2)