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Rust/corossion in Koolance Quick Disconnect Units after use for radiator flush

post #1 of 3
Thread Starter 
Hi all,

As the title reads, I have got some rust/corrosion, possibly even algea growth on my Koolance Quick Disconnect units. I have MO-RA3 (big external rad) and proceeded to clean it before use (about one week back). I have used normal water and then distilled water with some vinegar (regular stuff nothing special). I have used the QDCs (quick disconnects) for easier filling/draining and got this:






The rad seems to be fine and the QDCs connected to it - but the ones connected to the Primochill tubing which I used to make the job easier is not. So my hypothesis is that the tubing when it came to contact with the vinegar just leaked something and possibly caused corrosion - but I'm probably wrong. Anyway, would appreciate any insights - I haven't put my loop together yet, so I want to figure out what went wrong before I infect my entire system. One of the QDCs is basically so full of it, that it stopped working (I can't push them together).

Here is the list of parts that were present during the flushing:

Radiator: Mo-Ra 420 -> http://shop.watercool.de/MO-RA3-420-PRO-black/en
Tubing: Primochill PrimoFlex -> https://shop.ekwb.com/tube-primochill-primoflextm-advanced-lrttm-15-9-9-5mm-elegant-white-retail-3m
Fittings: Koolance quick disconnects ->http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/50706 & some other basic Koolance fittings http://shop.watercool.de/epages/WatercooleK.sf/en_GB/?ObjectPath=/Shops/WatercooleK/Products/50083
Substance: normal water; then distilled water (from gas station) and regular vinegar from grocery shop in 5 to 1 ratio


Thanks!!! smile.gif
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Tiny
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post #2 of 3
Quote:
Originally Posted by G227 View Post

Hi all,

As the title reads, I have got some rust/corrosion, possibly even algea growth on my Koolance Quick Disconnect units. I have MO-RA3 (big external rad) and proceeded to clean it before use (about one week back). I have used normal water and then distilled water with some vinegar (regular stuff nothing special). I have used the QDCs (quick disconnects) for easier filling/draining and got this:

The rad seems to be fine and the QDCs connected to it - but the ones connected to the Primochill tubing which I used to make the job easier is not. So my hypothesis is that the tubing when it came to contact with the vinegar just leaked something and possibly caused corrosion - but I'm probably wrong. Anyway, would appreciate any insights - I haven't put my loop together yet, so I want to figure out what went wrong before I infect my entire system. One of the QDCs is basically so full of it, that it stopped working (I can't push them together).

Thanks!!! smile.gif

One word. Plasticizer. It's bad stuff and some types of tubing use it to make the tubing flexible, without it, the tube would be stiff and kink alot, and it's worse if it builds up in your loop and clogs all the blocks. Using tubing like tygon, you won't have plasticizer in your loop.. I would avoid Primochill, but others might disagree.
post #3 of 3
That is certainly not plasticizer residue on your fittings.

It certainly looks like a corrosion or plating related issue on your fittings.

How much vinegar did you use [ie. what strength]? Vinegar is effectively an acid and it may have damaged the plating on your QDC's if your solution was not diluted enough.

The black Koolance QDC fittings have a history of corrosion related issues....see here: http://www.overclock.net/t/1404275/black-koolance-quick-disconnect-owners
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Corsair 900D
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