hi all :)
I was starting to make some t's and came across something strange. I had soaked the first piece in citric after silver brazing the site glass side arm, which cleaned every thing up nicely. After soldering the flanges, I first soaked the piece in vinager to remove the flux (seems to work better than citric for flux removal), and things started to go black around the flanges. when I soaked in citric (20%) the whole things started to darken up. it almost looked like it was starting to take on a silver coat. any ideas? never happend before :wtf: