I just had a thought, could you put a wire of the desired metal in the flame. Anyone know if propane burns hot enough to do this? I'm used to bunsen burners. You still wouldn't burn purley color, but you could get color towards the center, if I'm remember my flame testing correctly. Darn all this, I...

Hey All, This thing has inspired all of us...including folks in Wyoming and Utah... I found a pump that is solar powered at http://www.siliconsolar.com that is purpoted to pump 75GPH at a height of 4ft. I too am planning on building one of these pups, hopefully in time for the Utah regional this yea...