I am planning on building a water-cooled system, and after researching, I discovered that silver acts as a biocide against algae or other nasties growing inside the loop. So, that's great, right? Well, it would be if I could find some, but I can't! The only alternative I've found is a "kill-coil", but it looks ugly and I highly doubt it would fit in my res.
What else could I do? I am also thinking of using p.T Nuke in the loop, but I would like something true silver in order to be absolutely sure.