I've had a problem with 2 brands of softwood pellets leaving a sticky residue inside the hopper floor on my Santa Fe. It is as if pitch is leaching from the pellets as they warm inside the hopper. The 2 brands are Marth Softwood and Wood Fibers Inc. Softwwod. I have had no problem with Uncle Jed's softwood pellets.
I tried coating the hopper with dry graphite, Pledge furniture polish, and silicone spray. Of course I cleaned the surfaces to bare metal before applying those products, and I didn't apply one over the top of the other. Nothing worked as the residue was enough to prevent about 1/3 of the pellets from sliding down to the auger chute.
This is another reason to only purchase a few bags to try before buying in bulk.
I tried coating the hopper with dry graphite, Pledge furniture polish, and silicone spray. Of course I cleaned the surfaces to bare metal before applying those products, and I didn't apply one over the top of the other. Nothing worked as the residue was enough to prevent about 1/3 of the pellets from sliding down to the auger chute.
This is another reason to only purchase a few bags to try before buying in bulk.