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What is THIS in my loop? - Page 2

post #11 of 23
^^Yea, they are grey! Which leads me to think material corrosion.

Quote:
Originally Posted by bowmanvmi View Post
Primochill primoflex. Stuff I've used before without incident. You keep mentioning this "plasticizer" but that's the first mention of it I've seen on these boards.
It used to be a problem with tubing way back, practically non-existent now. The tubing releases chemicals out into the loop, so they've come up with tubing that is plasticizer free.
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post #12 of 23
What brand of gear are you rocking? For Blocks and Radiators?
post #13 of 23
Thread Starter 
Quote:
Originally Posted by XNine View Post
What brand of gear are you rocking? For Blocks and Radiators?
Primochill tubing
Danger Den copper/acrylic block for 8800GT
HK 3.0 copper CPU block
Black Ice SR 240
Distilled + PT Nuke
Bitspower fittings
post #14 of 23
Quote:
Originally Posted by bowmanvmi View Post
Primochill tubing
Danger Den copper/acrylic block for 8800GT
HK 3.0 copper CPU block
Black Ice SR 240
Distilled + PT Nuke
Bitspower fittings
Nickel plated fittings?
PT Nuke cu?
Radiator?
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post #15 of 23
Quote:
Originally Posted by tsm106 View Post
It used to be a problem with tubing way back, practically non-existent now.
Duno about that, Tygon R-3603, commonly sold by almost every WC parts etailor, has been giving me fits with plasticizer leaching out of it.

This picture is of my system after about 2 months of running at 100% CPU/GPU load in ambient temps of up to 31ºC, water temps of up to 37ºC.


It started off looking like this.


The plasticizer didn't all stay on the tubing, some of it got stuck at the injection plate in my CPU water block.


Quote:
The tubing releases chemicals out into the loop, so they've come up with tubing that is plasticizer free.
Plasticizer free tubing, that is still flexible, is pretty expensive, especially the Tygon stuff. Not all WC etailors even carry it.
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post #16 of 23
If the general consensus is that it's the Nuke (which I'm not saying it is), you can get a silver kill coil pretty cheap from most online jewelers. It's like $1 vs $15.

Also, are you using the PHN Nuke?
    
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post #17 of 23
I do apologize for clearing out the better part of this discussion but a flame war seemed imminent between the vendor rep(s) and a couple of members. I don't think we need that kind of stress.
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post #18 of 23
Plasticizer and flux (what you see in PA) are two different beast and can require different cleaning methods. You can try removing the O-rings on the fitting and place the fitting in scolding hot water for 5-10 minutes. I would try that first before using any cleaners. Report back with the results.
post #19 of 23
I also think it appears to be flux as I've seen this look before. Thermochill PA series rads usually exhibit this dark crud caked on the interior of your tube and fittings within 4-8 weeks of being put into use. I've not seen the SR-1 series from hw labs do it and never had any complaints about it either.

When you do clean your loop, replace your tubing and as suggested, safely flush your radiator to clean it. With the buildup you've had, it needs it now anyway. If it starts to cloud up and fog again within a month of use, it is likely not flux.

I have a rig that also runs distilled water and 2 drops PT Nuke, using an HW Labs SR1-360 radiator. The system is used daily, often in direct sunlight in temperatures varying from 40 to 95F. I've been meaning to tear it down for two weeks to check our block internals. I made time to do it after reading your post. After examination it had a light coat of something, but nothing like the dark caked material you've got going on. The D5 res has yellowed some around the impeller, likely due to all the heat and 24/7 operation.

Added some pics of the teardown. Yes that is an EK block, a GTX 275 acetal/nickel. The thin layer of garbage wiped off with warm water and a scrub brush. System has been in service for over a year.




post #20 of 23
Thread Starter 
OP here. I was in the midst of tearing down my loop anyways when I discovered this. I've seen flux like this before and while bad, I've never seen the metallic-like crystallized film that is sticking to everything as well, particularly noticeable in the pictures of the res. I've got a new radiator, blocks and tubing so we'll see how that goes. Thanks for your help guys.
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