"Norman D. Crow" wrote in news:d1vqht0es5
@enews2.newsguy.com:





"Patriarch" wrote in message
. 97.136...
"Boots" wrote in :

it is surface rust. Someone told me the acid they use to
clean brick will clean it. (can't think of the acid?)

muriatic acid


I knew the name. I think it's a very bad idea, however.

Patriarch,
who has scrubbed a few bricks and blocks in his youth.