Bob, with all do respect, you sound like you're trying to reinvent the wheel here and you're taking things out of context that was said before. Not everyone will have the same expertise as another. We've talked to many experts in the field and outside the field for years around here. It's great to talk about these things from time to time to grease up the gears again as well as inform those misinformed.
Bob, not everyone wants the break down to the specifics on WHY things happen. We tell them just don't use dyes and enjoy your PC. If they want to get into more specifics, that's fine but you're sitting here tryna give us lessons on things we already know because we didn't pull out the chemistry books out. Sorry, it won't appease to the masses the way you would want it done which will lesson this already niche market which has been picking up steam the last few years. There are those that love talking about all of these things but majority won't.
Let's try and be less dramatic and become open minded on all fronts here.
Heres my thing...
Why, specifically it happens... no clue.
I ran distilled, PN-Nuke, killcoils for many many many months chronicled in the stickies. I believe running a modern (2015+) liquid that is clear and prevents corrosion is the best bet. That is MY new standard to follow here.
Gunk and any other discussion is due to fools not following my standard. Which is new, see above.
Any dye, colored water is just silly talk. Like the Monty Python silly walk sketch. Watch it. Be the one who walks like John Clease. I dare you.
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To the OP. I think people have given their answers and you basically want to argue with them.
Those are not answers.
Thats ALL Im saying. Thats not be "dramatic". Theres so much "old wisdom" around water cooling that makes me serious facepalm. Pumps at the highest point of the system, reservoirs BELOW the pump, adding small concentrations of chemicals that have the COMPLETE OPPOSITE effect, running reactive tubing, not starting with clean hardware to begin with, etc...
Answer me this. How many times have you seen it recommended to "add some antifreeze (glycerol) to kill bacteria"?
It takes almost no time at all to gunk up a water block. Mine is gunked up after running my leak test, and I forgot to clean it. No dye, no stains, no chemicals, just some bottled water.
There are an ungodly amount of variables, and everyone focuses on the water soluable pigment as the culprit? Its absurd lol. The only thing the stain/dye is doing is coloring the gunk, whether its biological or plasticizer lol. Im not being "close minded". If anything, Im being obstinately the opposite. As for staining hardware, who cares? Unless you're running clear acrylic and the acrylic stains (I know it will, but how often are people changing colors anyway?), what is the big deal? If youre against STAINING, and that is the argument, I can accept that. What I don't accept is "if you use colored liquid you will have problems with clogging".
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Dyes have and will breakdown
How?
The sad part is that it really isn't complicated. People just make it that way by getting all complicated and wasting money where it isn't needed.
To the OP. I think people have given their answers and you basically want to argue with them. Unless I'm mistaken Fluid XP is an old product originally sold by a now closed water cooling company. Unfortunately I can't remember their name though. (Maybe someone can help me with it. They were Danger Den's primary competitor other than Swiftech way back when.) Based on shelf life alone I wouldn't use the product because it has been sitting on a shelf for who-knows-how-long which means the time you will get out of it has been decreased. The bottom line is that pre-mix products have and will breakdown. Dyes have and will breakdown
Fluid xp is still in business...
That said, I will obviously have a gander at the manufacturer date. That is a fair thing to bring up, and given the absurd discount I purchased it for, its very possible it might not be ok. I'll check it out.