I had my burn pot fill up again last night. I have good draft, all my blowers are working well. My burn pot is full of ash and its clumped up in there. It was packed in like damp sand. I checked the vent under the burnpot and its clear. I dumped the pot and fired the stove, the flame looks good... Strong fire, good draft. I took a few pics. I have a fluffy tan ash inside the firebox Could I be burning wet pellets?