So here is my 6+ year old CPU 380A block
So it was time to tear down my secondary pc for cleaning...upon further inspection it wasn't really needed. The block came out clean no oxidation no gunking almost as if brand new! This is a 6+ year old cpu block that i opened up for cleaning around 3 years ago same deal spotless clean. It just boggles me when people have issues in just under 6 months when using distilled water + silver kill coil or other pre mix coolants. I am using only Koolance 702 coolant and it kept everything clean including my fittings and their threads.
There is some feedback against the usage of pre mix coolant well this is true for some of the pre mix coolants out there. But this one is just excellent no regrets the only downside it is pretty expensive for a 700ml bottle here in Europe a whopping 25 eur which translates to around 30 USA dollar a bottle! Here are some pics the photo's don't do it much justice but its the best i have i instantly took photos upon opening the nickel plated block (Koolance 380A):