Talk:Lead castle

Lead sourcing?
Where does the lead come from? Is there an issue, as there is with steel, of post-WWII lead having radioactivity of its own, thus affecting count rates in low-level measurements. Does this (as with steel) encourage a market in "old lead", without this increased background?

Can old lead be melted and re-cast without increasing its background? Andy Dingley (talk) 14:21, 3 December 2017 (UTC)

Lead alloy?
What's the alloy here? Pure lead, or hardened with antimony? Does the lead need to be kept pure? Andy Dingley (talk) 14:22, 3 December 2017 (UTC)