So I went to my LFS and picked up a piece of drift wood. It is a nice "V" shaped piece where the legs are 12" to 13". As soon as I got home I began to soak it in some cold tab water in a tub. I check on it in the late evening and to my surprise, the water was crystal clear (except for some sediment that settled at the bottom). Why is it not releasing any tannins? Is this normal? Do I have to soak it in boiling water for that to happen? What is happening?