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White Residue in Tubing - Pics

post #1 of 9
Thread Starter 
Hi Guys,

I started my first water cooling build about 6months ago.
System consisted of a XSPC RS240 kit plus a GPU block for my 6970 and an extra RX120 Rad.
Worked well and have had no problems whatsoever, other than temps and have drained the system at least 3 times for component swaps.

Now the real story, I am currently upgrading to a better loop, but after I took apart my system, I have noticed a strange white residue in the tubing. I have noticed it before since my tubes were a bit cloudy a few months back, but have not looked into too much detail until now. I have included pictures below to show.

I don't know how my tubes developed this fine(thick?) layer of residue. All of the tubes in my system have a layer, and after the water dried up, you can see some in the reservoir wiring. The tubing has transitioned from being transparent to opaque over this time. There is also a ring around the tips of the barbs. All the residue can be rubbed off easily with a cotton swab or fingernail. The residue did not stick on the blocks as they were clean, although the RASA block had just a very fine layer on the acetal portion.

All my tubes were Primochill LRT tubing which is supposedly lined with an anti-microbial layer. I had a silver kill coil with a couple of silver barbs in the system and was using distilled water. Before installation, I didn't flush the radiators efficiently, only with a couple cups of room temp distilled water with a couple minutes of violent shakes x2. System temperatures were not awesome or anything, maybe because I didn't have enough radiator to cool my system below? I also had some blue led lights.

I think it might be the radiator flux, but I might be mistaken. Could anyone enlighten me on what this might be? Is it algae...something else? How can I prevent this? Any solutions would be helpful.

Thanks.







    
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post #2 of 9
Definitely just looks like radiator flux to me, even after flushing you'd be surprised how much particles are still trapped inside every nook and cranny. Just clean out the tubing and parts as best you can with distilled and a microfiber cloth. All should be gravy after that
    
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post #3 of 9
either rad flux like ttoad.nz already said, or plasticize
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post #4 of 9
If thats the tubing your Rasa kit came with, then its called plasticizer, get better tubing and flush everything and all will be well
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post #5 of 9
killcoil looks like a spring thats been half uncoiled >.> Is it pure silver?
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post #6 of 9
That silver kill coil looks nothing like mine, yours look like it's actually a spring off a model rc car. lol
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post #7 of 9
Thread Starter 
@kdon
I am using Primochill LRT tubing, not the rasa kit one as I knew they weren't that good to begin with.

@Lerkah
Yes, it is a 99.9% pure silver wire. Got it from a Canadian water cooling site. I know it is kind of thin though, not as much surface area as the Iandh ones, but one is coming to me in the mail somewhere.

@Coolio831
Haha yea, its just a silver wire so I coiled it up into a spring...a very soft one that works!
    
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post #8 of 9
Thats just plasticizer
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post #9 of 9
Thread Starter 
Is there a way to remove/prevent this from building up, or is this normal in water cooling loops?
    
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