Live rock bleach bath

[canadianbudz604]

With a new tank coming soon I have some dead rock that I would like to give a bleach bath so i can have the rock ready for when my new tank is set up. I know people use acid but I would rather not play around with it. Can someone help me with the steps to bathing it in bleach. (Type of bleach, how much of it, how long the rock sits in it etc) thanks for the help. I have around 20lbs or so.