My LFS has a great piece of driftwood but after reading how to treat it I still have some questions. I am going to scrub it down with hot water and dump boiling water over it (I don't have a big enough pot) and then soak it for a day or two. Is there anything else I need to do? Since it is from a store, and I assume that they treat it, would it still have the contaminants that wood from a beach or river would have? Thanks.