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Corosion In loop - Cleanup Advice

post #1 of 4
Thread Starter 
I just tore apart my loop as i am getting ready to completely re do it. The loop had begun to cloud a couple months after i set it up but i didnt take to much concern in it at the time because i was planning on redoing it as soon as i got the money for some new parts. Fast forward 5 months and now when im pulling the loop apart i start to notice some corrosion around the fittings so i decided to pull my cpu block apart and found this




I also noticed similar signs around the inlet and outlet on the radiator.

The Loop previously consisted of a Black ice stealth 240, Heat killer AMD block with POM top and a all copper 4890 block, swiftec 655 with stock top. I used a mixture of tygo and tubing i got from ace hardware. I used Distilled water with i think 3 or 4 drops of pt nuke.

I need some help determining what caused this to prevent it in the future and also what i can do so cleanup and salvage the parts. I'm most concerned with the radiator and what can be done with it. I'm adding a new 6950 and a proper res to the loop and don't want this to happen again.

My initial inclination is that that we used too much pt nuke, but i dont know. any help would be much appreciated. Thanks
post #2 of 4
Well none of the parts you listed are made of aluminum, so it isn't galvanic corrosion. I looks more like deposits of some kind to me, although it is hard to tell from a picture. Can you scrape them off with a screwdriver or a knife?

To clean the block I would start with using vinegar and an old toothbrush and see what that gets you. You can always leave the copper parts in a vinegar bath overnight, just be careful not to get it on any rubber or plastic parts.

Cleaning the rad is fairly simple, but can be time consuming:
  • Fill with a mix of hot water and vinegar in a rough 10:1 mix
  • Cap the ports with plugs or barbs and some scrap tubing
  • Pick up with a cloth (it will get hot) and shake like crazy
  • Empty into a clean bowl and check for dirt
  • Repeat until liquid comes out clean
  • Flush a few times with water to remove any remaining vinegar

If you didn't clean them before use the mess could well be flux or other crud from your rads. Alternatively it could be that the tubing has broken down and leaked plasticiser into the water. So long as you followed the directions on the PT Nuke I doubt it was that, and 3-4 drops sounds about right depending on how much liquid is in your loop.
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post #3 of 4
Thread Starter 
Thank you for the advice.

The stuff has a light blue coloring to it and i can scrape the big pieces off easily with my finger nail. i didnt flush the rad prior to the install so that might be the culpret so i'll make sure to get it cleaned out this time round hopefully that will prevent it from hapening again.

Also i was thinking of using a silver killcoil instead of pt in the loop this time around just to be sure
post #4 of 4
In my build, I had all fans and radiators mounted, then realized I should flush it all lol. TO my surprise, my Black Ice 120 had more crap in it than my EK 360.
 
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