>>11457007Both are generally deadly to microbial life, I'm not sure why any combination shoudl be meore deadyl in particular, knowing that woudl require research. It also isn't clear if it's the oligodynamic effect, or just those metals being genuinely toxic to lower life getting poisoned by the ions dissolved in the water.
Anyway copper can be used by your body for the same purpose as well as some other things, while silver cannot be handled well and lead to argyria, so it's probably better to stick with copper. But I don't know for sure.
