So I started cleaning the accentra today. Wow.. What a difference! As I said the guy I bought it from was in his mid to late 70's. He told me he was starting to have a hard time moving the pellets and getting down on his knees to do the cleanings. So I just got down to it and started scrubbing. I got after it with several size wire brushes, and some heavy duty citrus solvent... The pics should show how good it's coming out. I've got the left interior side just about done, take note of the airwash tube...wow! The right side hasn't been touched for comparison. Can't wait..It's gonna run great!