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Corrosion!

post #1 of 37
Thread Starter 
So I posted a thread about suggestions for cleaning my fittings after I found corrosion in a couple of them.... I had no replies frown.gif

Anyway I let all the fittings sugmerged for about 24h in water+vinegar, I had done that before to clean them (didnt have much corrosion that time though), however I made the huge mistake of not totally submerging the fittings, some of them peaked a little above water level. What happened is that those dry parts formed some tiny spots where the nickel disappeared frown.gif!! All the submerged portion of the SAME fittings were good, only the dry portions had the problem. This has to have some relation as where my corroded fittings were the ones I used for my drain valve only...

On cleaning the system I also found big deposits of brown gunk in my CPU blocks, which I guess is corroded material...

I need some advice... when does a fitting become unusable? There are copper parts showing in some of my fittings, they shouldnt be a problem since the insides of the rad are pure copper anyway right? Other fittings have more brownish stains sitting ABOVE the nickel coating. Are they good to go after a good toothbrush cleaning?

Also, any recommendations on anti corrosion additives? Before mayhems pastel I have always used only distilled water with some drops of biocide... anything else I should add? I dont want some fittings corroding the new ones I just ordered frown.gif

Thanks for the long read...
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post #2 of 37
Do you have aluminum in the loop as well as the copper components?
Could the brown gunk be bacterial growth?
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post #3 of 37
Thread Starter 
No, all copper fittings and rads
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post #4 of 37
Can you post some pictures?
post #5 of 37
Thread Starter 
Quote:
Originally Posted by spinFX View Post

Do you have aluminum in the loop as well as the copper components?
Could the brown gunk be bacterial growth?

Here is one I took 2 nights ago after cleaning the other fittings, these were the worse BEFORE cleaning, I havent done these:


83b305eac7a8db72915cc59f29d99793.jpg
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post #6 of 37
I can't tell what brand of fittings those are. Did you buy them off of Ebay? If so, that may be the cause of your problem. It looks like iron oxide which would mean you may have steel material somewhere in your loop. Can you list exactly the parts you have in your loop?
post #7 of 37
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Quote:
Originally Posted by mtrapuzz View Post

I can't tell what brand of fittings those are. Did you buy them off of Ebay? If so, that may be the cause of your problem. It looks like iron oxide which would mean you may have steel material somewhere in your loop. Can you list exactly the parts you have in your loop?

The color is exaggerated by the photo, its paler in person. Those are my OLDEST fittings, they are Koolance, acording to specs they are: Brass, Nickel Plating, EPDM

Everything I got is from these brands: Koolance Radiator, EK GPU block, Koolance CPU blocks, D5 pump (do you know what's the material of the impeller?!), and fittings from EK, Bitspower, Koolance, Monsoon and Primochill. The primochill ones seem to be Brass because they look redder where they dents and polish from usage. All is copper or brass, except for the innards of the D5 which seems nobody pays attention to haha.
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post #8 of 37
The pump impeller is plastic so no worry there. Take a magnet and scrape off some of the corrosion to see if it is magnetic. You were using distilled water from the grocery store?
post #9 of 37
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Quote:
Originally Posted by mtrapuzz View Post

The pump impeller is plastic so no worry there. Take a magnet and scrape off some of the corrosion to see if it is magnetic. You were using distilled water from the grocery store?

Yes but check this pic:




THAT PICTURE is from GOOGLE btw!!!

That ain't copper man, and if a shard got in there it means water touches that metal. Good idea about the magnet I'll check when I get home

I bought distilled water from the Drugstore AND used Mayhem's pastel which supposedly has anti corrosion and biocide. I however was negligent and didn't clean my loop in about two years...
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post #10 of 37
If you didn't change the water in two years that may also be causing the problem. Over time the water will pick up ions from the metals and won't be distilled any more.
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