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White residue on tubes

post #1 of 23
Thread Starter 
Hi all,

After cleaning out my whole loop and finally getting distilled water to run clear through my components, I hooked everything back up and started running my loop using just distilled water and "dead-water" (copper sulfate).

Now, a month or two later, my tubes have this strange white residue on the inside...

What the heck???!!!

Any ideas where this is coming from? Thanks.
post #2 of 23
It could be plasticizer from the tubing. If I'm not mistaken, you reused the same tubing as before? It could be some plasticizer from the tubing ended up in the water and on the tubes.
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post #3 of 23
It's either plasticizer or rad flux. Most likely plasticizer though. It happens to all clear tubing eventually. A pic would be helpful in the diagnosis though.
    
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post #4 of 23
@OP
What type of tubing do you have?
post #5 of 23
Thread Starter 
Quote:
Originally Posted by bfeng91 View Post
It could be plasticizer from the tubing. If I'm not mistaken, you reused the same tubing as before? It could be some plasticizer from the tubing ended up in the water and on the tubes.
Quote:
Originally Posted by _AKIMbO_ View Post
It's either plasticizer or rad flux. Most likely plasticizer though. It happens to all clear tubing eventually. A pic would be helpful in the diagnosis though.
Quote:
Originally Posted by DigitalMonkey View Post
@OP
What type of tubing do you have?
I washed out all my components with distilled water, and put in brand new Tygon 3603 tubing. Going to take some pics.
post #6 of 23
Quote:
Originally Posted by NoodleGTS View Post
I washed out all my components with distilled water, and put in brand new Tygon 3603 tubing. Going to take some pics.
Tygon clouds up around the 4-6 week mark for me when using copper sulfate (PT Nuke in my case).
    
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post #7 of 23
Tygon R-3603 is notorious for leeching plasticizer. That is why I opted for colored tubing, I either can't see it or it is very faint.

However if you prefer Tygon, you can always check out their 2001 Plasticizer Free tubing.
post #8 of 23
Yea, Tygon 3603 is known for plasticizers. Try out PrimoChill LRT. You don't have to worry about your loop being cloudy again.
post #9 of 23
use car coolant
    
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post #10 of 23
Quote:
Originally Posted by rheicel View Post
use car coolant

Good idea, im gonna use this mixed with distilled. Its a GREAT biocide, looks COOL, and it is ALSO an anti corrosion agent. Use ethylene glycol(green type) not propylene or DexCool(red type) tho. The Dex Cool/Propylene glycol is corrosive stuff. Dont use it at any costs.Itll corrode your w/c parts. it corrodes the engines, gaskets, radiators, and reservoirs in the vehicles its used in. So Id stay away from it. Ive seen it turn BLACK from corrosion. Being a car technician, Ive seen more problems with Propylene glycol(even tho its GM's standard coolant these days) than with ethylene glycol.
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Ethylene Glycol
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