So I recently bought my first house and am thinking of using this to upgrade my water cooling system in my PC. Its currently just a small 240mm Rad Pump and CPU block. The option I was thinking of are: 1) Run some tubes down to the basement and put the radiator, and pump in the basement. Logic behind this is the basement is fairly cold and there is lots of space down there. 2) Very interested in this option. I noticed my PC room is above the main water line coming into the basement. This gave me the idea of just branching off of my water main, run a line to the computer and then a drain line back down to the basement. This would give the computer access to water that is always between 5-10 degrees Celsius. However my main concerns with this idea are: Build up - Would counter with putting a Reverse Osmosis system before the water heads upstairs. This would make the water distilled quality and since the water is clorinated organic things should not grow. Pressure - The Reverse Osmosis would help with this some however a pressure reducer may still be needed as the water comes in at about 40 psi. Condensation - On hot humid summer days large amounts of condensation would form on the pipes and possibly inside the computer. Rough sketch of the idea: http://imgur.com/SmVopsM Just wondering does this sound like a bad idea or does it actually make sense? Input would be great.