Ok. Second questions. I know a guy who has 100 lbs of lead. He said he melted scuba weights, pipes, and wheel weights. He does not know the temp he melted out and might have zinc wheel weights in it. I have never casted before and I am looking to start.
He is only wanting 20 dollars for the 100 lbs. If I keep my pot at 650-700 degrees will I be able to make sure its pure lead?