Well it didn't fade as fast as mlwood might have said here. I started to see changes after 1 week. Now this is after a little more then 2 weeks. What i used before was deionized water and the mixture swiftech has. Mix is suppose to be one bottle to every 500mm. But my mix was weaker. Used more water. The first time i didn't run with the nickel block. Then i took everything apart and rinsed it with hot water from the tap. I'm thinking there night be something there that could make a reaction. But as someone said, there could be leftovers from the other coolent. But it was flushed very well. All parts.

But i'm going to make 3 mixes with some drops from the tap, just distilled, and one i'll put in my other nickel block. Never used. Here is a before pic. It was uv pink, blue 2, candy red and purple all together..