This is amazing to me. I ran these two blocks with the right mix of purple ice and a little dye-light for about two days. The inside of the aluminum tops to these water blocks is nearly black, and there are copper deposits sticking to it.. they are white in the picture. My Fluke meter read about .7 volts between the blocks and the radiator. I'm now going to do some tests with Glycol. after I clean out the blocks.... geeezzz
Any other comments... suggestions