Water Cooling Newb

Now, I've had most of my questions on this subject answered but I still have one more. This involves distilled water with no additives, aside from silver. What materials (metals in particular) should I exclude from my kit? I'm worried they might corrode over time or some other odd occurance. I'm also worried that combining certain metals might fast forward corrosion. Is there anything that I need to know?  


Thanks in advance,


Instead of a silver coil, use one drop of this instead (for distilled water). You shouldn't have any corrosion issues.


I can't use anything other than silver. Unfortunately, I have to leave certain variables out for I am doing a test run for silver. But thanks, I appreciate the reply.