Green waxy buildup inside copper pipe

[Lambo]

A while back I cut into my cold water line to fix a leaky valve. This line feeds both the kitchen sink, and tees off to the said valve, then right to an exterior hose bib. The green stuff feels pasty in consistency. Anyone know what this is, if it's safe to drink the water going through it, and a way to get rid of it? Thanks in advance.

 

[Jeff H Young]

flux

 

[Sponsor]

 

[Lambo]

dang... so it's all the petro based flux built up towards the end of the run then? We've been drinking this water for years, hope that's ok, haha.

 

[Jeff H Young]

yea cant be good for us. hard to belive that 50 50 solder was bad for us but guess its true too