Plasticizer leach?

[D749]

I do kind of wonder what role the copper sulfate plays. I'm using silver now but I also am not using any nickel

Most people know to stay away from copper. Silver has been the new "thing" in town for the last few years. I ran a strip of pure silver (99.xx%) in one of my machines without noticeable issue or so I thought. It wasn't until I broke down that system and months later went to use some BP fittings that I noticed corrosion on the fittings. I did some digging and that's when I found that nickel and silver can cause issues. Ek experienced this first hand. That's why I don't mess with any of that crap now - no dyes, no plasticizer, no silver and no copper.