From: gnuarm.deletethisbit@gmail.com   
      
   George Herold wrote on 1/14/2018 2:34 PM:   
   > 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.)   
      
   Yes, styrofoam can be closed cell or open cell.  Even closed cell will   
   eventually water log.  It should be encased in plastic.   
      
   --   
      
   Rick C   
      
   Viewed the eclipse at Wintercrest Farms,   
   on the centerline of totality since 1998   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)