Hi all.
I've seen twice now cast iron bathtubs being given away in my area. Also have seen the info on basically making biochar in a trench. THEN I saw a blog post about using a cast iron tub as fire pit.
So I'm here to ask can I make biochar in a cast iron tub? I'm talking no modifications. The price of a plasma cutter is just out of my range.
But I've got these terrible weed trees that i need to get rid of. They won't make hugelkulture material because they're liable to sprout again if I bury them. And I can't count on the city to clear them. I just want to make the best use of all this waste and brush.
Thank you for any thoughts.
