I thought you needed 1/2 bleach solution, not 10%? Will 10% be strong enough? Or will you just be watering what you want to dry out? Like pouring gasoline on a fire? I would have used straight bleach, then used a kerocene jet-type heater to dry it out. I think now that you waited for months, its too late. Got good insurance? Need a faulty electrical device to blame the fire on? I would have it professionally torched!