I have a Envrio Omega for about 2 seasons and the Agitor is scrapping the pot making a loud scrapping noise. I noticed that on the burn pot on the upper part of the burn pot closest to the glass there is a thick line of build up of hardened ash. It takes about 2 weeks to build up to where it affects the aggitator. I have to take the burn pot out and chizzle and scrape it out. Throw it back in and runs like a champ. I have seen posts about the aggitator having build up and needing to be filed down but not much on the burn pot. Anyone have any experience or ideas on this one. I'm going away for acouple days but will check back monday. thanks in advance