So I got about a 1000 lbs of lead pipe from an underground contractor. There were also half a dozen pails of shut off valves with lead on one or both sides. It looks like a bulge where the lead pipe joins the valve. How do I get the lead off. I know I can throw the whole works in the melt but then the question is what's the possibility of any water trapped in the valve? If I can open it an see through it, it should be fine, right? I've melted A LOT of lead pipes but never with valves.