Chrome removal from Bumper

pishta,
Thats an interesting method. Ive never done anything like that. I guess my first question would be have you actually done a bumper? If so how big of a tank did you use? How deep and wide would I need it to be? As for the solution your saying washing soda. Ive never heard of that so where would I find it and what kind of costs would I see. I would be interested in trying this if its feasible to do at home. When you say chrome wrench are you talking like a regular snapon wrench? The pic show copper, will i need a copper bar? what is the key?
Thanks
Rod