I am setting up a blueing station. I have most of the stuff I need to set up to blue, but I need a couple more tanks. My question is can I use SS tanks to run my salts and 909 in I have conflicting advice on this matter Brownells says no I need black steel tanks for salts, and i got a gun smith that wants me to do his blueing saying SS is fine he had a system set up that way and it worked fine. Is that true can I use SS?