ANYONE HAVE A PELLET STOVE?

[DEERSPINE GUY]

I'M GETTING THIS HARD CARBON BUILDUP IN THE BURN POT IN A MATTER OF A DAY. STOVE IS CLEANED, AS MUCH AS I KNOW HOW, TRIED HOTTER SETTING, MORE AIR, LESS AIR, USING LIGNETICS PELLETS. KEEPS HAPPENING. NOT A DAMN CLUE WHY.
ONE GUY SAID TO DRILL SMALL HOLES IN THE BURN POT WHERE THE BUILD UP IS HAPPENING ALLOWING MORE AIR FLOW.

ANY ONE HAVE A CLUE?