What are some thoughts on how to clean this up for a novice? I do have everything I would need for an etank. TIA, if this pictures work out for me.
Cast iron https://imgur.com/gallery/Y2mI5
Cast iron https://imgur.com/gallery/yyL4O
Cast iron https://imgur.com/gallery/Y2mI5
Cast iron https://imgur.com/gallery/yyL4O