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Dept store Quartermaster
Join Date: Jul 2001
Location: I'm right here Tati
Posts: 19,867
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The Draino is likely sodium hydroxide (Lye) which will not hurt or react with copper, brass, plastic or steel as best I know. It will however eat the hell out of aluminum so be warned there, it literally dissolves aluminum.
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Cornpoppin' Pony Soldier
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