I am fairly new to the forum and think its great. I completed my first silver recovery a couple of weeks ago from contacts and produced a 1 kilo silver bar, now I am hooked.... I have ordered a 4' fume hood and I am waiting till it gets here before any further attempts but have accumulated all the chemicals and items like a furnace to proceed.... Anyway, I collect old school car amplifiers and have 2 CB's from amps that I use for parts that I would like to recover from when the fume hood gets here.... They are 2 layer boards and was wondering what you guys thought would be the best way to process these boards.... Thanx.... Keith