Once you have your ultra pure water, and are willing to commit to maintaining the apparatus that keeps it that way. There is a second problem, extremely pure wa

Once you have your ultra pure water, and are willing to commit to maintaining the apparatus that keeps it that way. There is a second problem, extremely pure water is surprisingly corrosive, A laymans explanation is that it would be happier with a few ions, and will gleefuly strip them off any exposed metal. Which is a shame. It would be nice if water could be used directly in an immersion environment. Much better thermal properties than anything else, and no mess,