The Chowhound Team split this tangent off from the Pacific Northwest board.
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I have a #9 Kamado cooker that I paid $1,200 for. 1/3 of the tiles have fallen off, hope you have better luck than I have had, willing to sell it for $20 - you haul.
You can get BGE lump at the local bge stores, Walmart will have lump, Cash n Carry will have mesquite lump up there in 40 lbs bags.
You might want to put a post on the BGE forum, lots of egg heads up in Seattle that are more than willing to assist.
Sorry about your purchase, should have bought a BGE.