Originally Posted by Zammin
Hey thanks for the clarification.
When I flushed the rads after using blitz part 1, I plumbed the radiator into the mains and let it run for 5 minutes, then flushed it with distilled water many times by filling the radiator and shaking it vigorously each time. It's just kinda odd that I didn't see any debris come out during that process. When I used distilled white vinegar in the past I could see the debris come out immediately when I poured out the mixture. The Blitz Part 1 was blue-ish though so it must have taken some corrosion or oxidization with out it.
True, there is a possibility that the black paint fibers could have come from the fittings, I can't prove that its not that. I did think that looked like debris from the radiator/s though, hard to be sure. It is very odd that it didn't show up during the 8 hours I ran the loop with pure distilled and only appeared within an hour after adding the coolant concentrate to the mix.
I bought an XSPC inline filter so what I will do next time is follow the same procedure but I will run the loop with the inline filter fitted to catch any debris for the first 24-48 hours so it doesn't get lodged in the blocks again.
What you experiencing could be a matter of timing and coincident.
I don't think you can predict, neither prevent from anything at anytime ending up in the loop(s) We all trying to go the extra step of cleaning our radiators before hand to make sure that they are as clean as possible, its one way of preventing from possible issues down the road, but again, if a fakes of paint or small particle from one of the fittings threads themselves or even debris from radiator that decided to be stubborn even after using acid solution, despite of that, you might still end up with piece of wherever in your system.
In Theory, so I'm not saying you should go ahead and do that, but if you decide to empty the loop(s) and flush your system few times again getting that persistent particle out, and then refilling it again, the chance of you getting anything similar back in the loop would be very slim, but there is still that small possibility that something become lose and flow.