read this thread... http://www.iforgeiro...5-fire-pot/page Holes in the bottom (as most firepots have) will guarantee that as clinker is formed, it will flow down and block off your air supply, which will make necessary a clinker breaker.
A better idea (IMO) would be if the bottom of your fire pot was raised so that there was room for the clinker to form without blocking the air. Imagine a ball cut in half with a hole thru the center for air. This could easily be forged and welded in place.
Your fire will be able to breathe without continuously 'breaking' the clinker and losing fuel in the process. When the clinker gets so large that it blocks the hole it can be removed from the top using a hooked poker.
Nice job on your pot so far.
Tom Allyn had the same idea and posted pics of his forge.