The local tire store sold me enough wheelweights to fill 3 of my 5 gallon buckets. They store their wheelweights outside and they were wet from rain.
I again noticed the water on the wheelweights when I was about to melt them tonight. I assume everyone knows putting water into molten lead causes it to turn to steam and splash molten lead out of the pot. I tried using the propane torch to dry the wheelweights, but this was much too slow. I decided to carry the wet wheelweights to the furnace room to let them dry.
This is the first tire place that I have seen store their wheelweights outside. I had not heard or thought of this problem before.