Be prepared for wood to leach some colour into the water. Turns it brown or yellow, and while carbon can remove most of that, fish generally like it. Water changes dilute it, and over time it does get less and less. But it takes quite a long time for some wood to stop leaching completely.
I have soaked some pieces in water with bleach, to lighten the colour a bit and speed up leaching. I then rinse well, and soak for a day or two in well dechlorinated water, just to be careful. I've soaked some pieces for up to six months and still had them turn the bucket water dark, though it takes longer each time I change the water. Bleach also stops the soaking water from getting smelly, if you leave it for a long period of time, but it's not necessary, just a tool I use for some wood pieces. Bleach is a good disinfectant of course, and salt would work as well for that, as was said.