I’ve seen varying opinions on making a forge with a sink but it’s what I have so I’m gonna use it. My questions are, what can I do for an ash dump in it? Would it be better to blow the air up into it or build a dirt “bed” then put air through the side of it? Last, if it’s easier to blow the air through the drain port how do I build that up? Do I just put dirt/clay on the sides and a pile of coal in the middle? Thanks