Quote Originally Posted by Peter Dunkley View Post
Thanks but I did reply to that post, I still have the ammonium chloride I bought and tried. It did rust but the results were patchy and awful. I still don't get the fact that all the successful brews contain Nitric which is nasty stuff. If the ammonium chloride works why do they all use nitric?

Back to the drawing board. What I am after and don't seem to be getting is someone who blue/blacks professionally. What do they use. I have asked a couple and they just suggest I send them the barrel at £150 a go.
Aye, any professional will be reluctant to give " how to instructions" to a diy'er, it's counter productive to their business, on the positive side there are lots of very good diy boys around, hope you solve the problem soon.a name from the past is Colin Malloy, I don't know if he is still on the go. His work was superb.