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Black chips in radiator

post #1 of 7
Thread Starter 
So I took my loop apart to clean it. When I was flushing out the rad with hot water from the tap, the water came out full of large, black chips; they're almost like flecks of paint.

Is there some chemical reaction happening somewhere? I'm 99% sure there's no aluminum in the loop; the only metals in there should be copper, brass, nickel and the silver killcoil. The killcoil had started to turn black around the edges when I took it out, but that scrubbed off easily.

I'm running straight distilled.

Any insight?
post #2 of 7
Sounds like flux from soldering (most rads have that); this should have been done before you assembled the loop. Just keep flushing until it's all out, and it should be fine.
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post #3 of 7
mine barely had anything in it when i rinsed it when it was new... i used HOT water and a little bit of vinegar, but could barely get anything to come out. mine is a black ice gtx i believe... what is yours?
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post #4 of 7
Thread Starter 
Thanks Chunky

I suspected flux but I had flushed it beforehand. Not well enough I guess

I've got a swifty mcr320.
post #5 of 7
Ah, I see. Usually it's the Thermochill PA series that ends up with that much flux... in that case you would let it sit overnight with 91% alcohol, then flush it.
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post #6 of 7
hmm i wonder if its coming up on the time when i should flush my loop ; )
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CoolingCoolingCoolingOS
XSPC EX120 120mm Radiator Silverstone AP181 Fan Gentle Typhoon AP15 Windows 8 Professional x64 
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HP LP3065c DasKeyboard Ultimate Model S Seasonic X650 Silverstone TJ08B-E 
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post #7 of 7
Interesting thread..

I've got a 320 and a 120 SR1 rad... Running distilled + PT Nuke, after a month and a half I noticed my water was looking a little cloudy so I flushed the water out.. I ran the old water through a fresh coffee filter and let the coffee filter dry..

The dried Coffee filter turned black and reeked horribly of chemicals.. The kind of smell when you open something made out of plastic that's been shrinkwrapped from the factory. The filter itself is paper, so I know the smell isn't from the filter.

Not sure if it the black stuff was from the tubing ( I am running black Tygon tubing) or the rads, but I wouldn't be surprised if I didn't clean my rads out well enough..

After flushing the water out, it's been running crystal clear ever since. I didn't even take apart the loop and temps improved slightly after the flush.
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