Sorry to hear about something like this.. I really dislike people like that. :@
I have more bad news on you're red\purple dyes. Don't know why this is happening. The rad is new, just flushed. The tubing is unused. The res was unused but flushed. Distilled water. One of the ek 5970 blocks were used, but washed real good. The second one was tested with a mix of water and you're dyes. No flow.
Tested old pump tubes and res with water and purple dye for almost 2 months. Then the color was the same.. Put inn a rad,cpu\gpu block. Then it looked like something happened. Sorry i didn't test it for more then a few days.
But here's a pic of the blue and what was red 2-3days ago. The blue is the same as before.

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