Hi, Look at this: http://peecee.dk/?id=26085 The color should be light yellow, not green... is there something wrong? I used some deminiral water (dont know the english word for it) and some of this: http://vcore.dk/shop/productinfo.asp?id=90100 <--copy+paste Hope you understand
I think that's probably the result of some algae growth. Also, you're probably looking for "distilled water" as the term. It's also possible that it's corrosion - is there a mix of aluminum and copper in the loop? I'd look into some sort of additive that can kill/prevent aglae. I think a small amount of antifreeze could work, but I'm not really an expert on additives.
I have a normal radiator, and a dangerden kopper block on my cpu.. but, there supposed to be something to kill aglae..