forge question | The Tools of the Trade | Forum

I won the forge and striking anvil at the spring conference auction.

I'm really happy with them, but I have a question, and I apologize as I don't remember the gentleman's name who made them or I might contact direct.

for other's reference the forge is much the same as those in the mentoring center.

He said to run at 3.5lbs and it seems to run quite well at that pressure, for a while. After a bit is starts to... burble? The fire cone is not well formed and the fire seems to be igniting early in the burner. If I shut off the gas and start it works for a bit, if I turn up the pressure it seems to work longer, but it does seem to return. I swapped out my small propane tank mid forge thinking it might be freezing up, but doesn't seem to be correlated. Maybe a back pressure problem? It works, but I'd like to correct the occasional wonkiness.  

The burning is welded into place with a few tack welds, easy to cut at move about if needed.

On my purchased forge (cheap one, Mr. Volcano, that is another story) when that happens I adjust the air and it seems to calm down. The new (better for various reasons) doesn't have air adjust and is running at full air, so there is that. Maybe I need to adjust the gas jet size?

Any thoughts before I go all "I gonna start changin' everything"?

Thanks.