On Thu, 10 Apr 2014 23:37:09 +0200, nestork wrote:

By just going with the hydrochloric acid first, then you
know it'll dissolve any rust it encounters.

I have nothing against HCL, and, the record shows,
I use it all the time - but - anyone who hasn't used
it should be cautioned as to how powerful that stuff is.

I left some copper hose components in a bucket of the
stuff, for example, only a few minutes, and they were
holed beyond use.