Thank you for all the feedback. I did a copper test on my prepared distilled water and tank. The reading is below .05 mg/l. That's the lowest reading on my test kit. If I had to guess, I'd say it's about .02 or .03 mg/l. I'm not even sure if it's from the water or the salt mix. I assume this is a safe level, but if not, please let me know...
Dan
Dan
