I asked a friend to show me how to sharpen my knives so I bought an overpriced Japanese whetstone and brought it to him. He then used some of his honing oil on the stone and then taught me the basics of how to sharpen a knife. I am now finding out that apparently I'm not supposed to use oil on a Japanese whetstone as it can ruin it. Is it possible to get the oil out of the stone? I had tried soaking it in water but I'm not quite sure if its going to work.