In this video I build a lead melter out of a air tank. This will be used to melt the 585 pounds of lead for casting the lead ballast keel. I need to build a melter so that I can melt our lead in order to cast the ballast keel. The first thing I need to consider is what kind of container. What this needs to be and how big the container needs to be. So in order to figure out the size of the container the first thing we need to do is to figure out how many gallons of lead we need. The container needs to hold 585 lbs. of lead which is about 7 gallons.The next question then is what kind of a container can we find that will hold seven gallons or so molten lead. Taking a page out of my friends Steve and Alix, from Acorn to Arabella, they use an old air compressor tank. In hunting down a container I discovered that Harbor Freight sold an portable air compressor tank a tank that has an 11 gallon capacity and sold for about $30. Perfect!