Originally Posted by coewar
The thing is actually that I was thinking I was making it SIMPLER than the other designs by drilling 3 of the same type of holes in the side of the barrel. I thought it was harder to remove the bung hole cap (which seems to require a tool I don't have) and then putting a flap on that.
But I will try at least leaving all the top vents open and see if I notice it better. Then maybe I can find something to open this bung hole cap.
You might try using a screw driver and hammer and tap it around or just pliers, opened up holding them straight and twist it. Some are hard to get off, it depends what was in the drum. When you get it off, you could just put it in after cooking until you make a plate to cover it.