Wool has antibacterial properties anyway so I don't think sanitizing it is as much of an issue as it is with actual diapers. I've only bought a few used wool pieces and I just washed them well with my wool wash and then lanolized. I figure it you wash them well, it will get the pee out....not sure about the tto?
I would suggest stripping the fibers with Dawn. That will remove the lanolin and any other oils or dirt on the wool.<br><br>
Afterwards you will need to lanolize your wool very well.<br><br>
Dawn is not something you want to use on wool very offen though.