Misc. musings on watercooling...
1. Always assume the water will conduct. The only nonconductive form of water is laboratory-pure, deionized water, and the salts from your skin are enough to cause a drop in resistance. There's more than enough stuff on the surface of your motherboard, etc. to make even deionized water conductive enough to be a rather bad problem, so assume it conducts and plan accordingly.
2. Alcohol doesn't do much in a watercooling setup other than make it harder for algae, etc. to grow in your lines.
3. Water Wetter owns. Get it. Use it.
4. Antifreeze, or some other form of corrosion inhibitor, is MANDATORY if you run different metals anywhere in your system, such as copper waterblock and aluminum-tubed radiator. If you're running all-copper or all-aluminum, antifreeze is basically unnecessary. When it -is- necessary, though, use it sparingly as too much will reduce the water's heat transfer capability.
oO