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post #11 of 26
Quote:
Originally Posted by PepeLapiu View Post

I would flush the loop with half vinegar half water, after taking all your blocks out, letting them dry completely, and scrubbing them with a tooth brush.

The non-conductive claim is pure lie. So if that manufacturer is lying to you about the non-conductivity, they are most likely lying about the biocide claim as well.

And live algea is green, so that brown stuff had to be dead algea.
Algea will occur when any amount of light gets in your loop. Since most of us have see-tru reservoirs and tubing, algea will occur.

I would get a X1, which is anti-corrosive, and a biocide.
And change your coolant more often. At least every year. Some guys like to do it every 6 months.

I've kept fish tanks for years and algae blooms come in all kinds of colors blues, greens, browns, reds, etc. Just because the algae is brown doesn't mean it's dead. As for removing it there's not much you can do in a pc type setting other then just cleaning regularly, scrubbing components with mild cleaning fluids. Do people ever run UV sterilizers in their loops? That would be pretty cool.
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post #12 of 26
i have uv lights in my pedestal, but i doubt it has an effect
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post #13 of 26
I'm not convinced it must be algae. Could be I suppose, but also sounds to me like it could be plasticizer instead, which would make more sense considering the use of an EG coolant. Also, every example I've seen of algae it usually wants to concentrate in certain areas in a loop, but plasticizer often spreads everywhere throughout the loop, which sounds more like what the OP describes.

What kind of tubing is it?

Edit:
For example. here are some examples of plasticizer leeching issues:






More here:
Overclock.net › Forums › Cooling › Water Cooling › Plasticizer Problems / Discussion / Gallery
http://www.overclock.net/t/1199158/plasticizer-problems-discussion-gallery/
Edited by Unicr0nhunter - 3/29/14 at 1:30pm
post #14 of 26
Thread Starter 
My tubing looks very much like the second pic with the brown tubing. I wonder if this is the issue.
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post #15 of 26
Do you see brown stuff in your tubing?
Or does the tubing itself look brown?
If the tubing looks brown, it's just bad tubing.
You can keep using it for a while but I would change it to Primochil Advanced LRT when you get a chance..
What brand tubing are you using right now?
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post #16 of 26
I second Unicr0nhunter's take on it. Algae growth is extremely rare and plasticizer issues are very common. Usually you get plasticizer mixed with copper oxidation products, and it can look brown or green. FWIW I've been following these forums for just over three years now and I think I've only seen one case of documented algae in a watercooling loop.
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post #17 of 26
Quote:
Originally Posted by PepeLapiu View Post

Here is why the low conductivity claim is a lie.
Distilled water is not conductive at all.
But once it is no longer pure distilled, it becomes conductive gradually.
So soon after you pour it into your loop, it will no longer be conductive as it gets ionized ftom the copper, nickel, platisizer, ect....
So your low conductivity coolant won't stay that way longer than a day or so.

One day I'm going to test this with a conductivity or TDS meter. I know the water I put into my loop started with a TDS of 0 ppm, as produced by my RO/DI filter. So it'll be interesting when I drain it next... I'll probably measure the pH, too.

Quote:
Originally Posted by PurdueBoy View Post

I've kept fish tanks for years and algae blooms come in all kinds of colors blues, greens, browns, reds, etc. Just because the algae is brown doesn't mean it's dead. As for removing it there's not much you can do in a pc type setting other then just cleaning regularly, scrubbing components with mild cleaning fluids. Do people ever run UV sterilizers in their loops? That would be pretty cool.

I was going to write the same thing. You don't know algae until you've kept a fish tank, particularly a planted or reef aquarium. I have a half-dozen or so UV sterilizers and if used properly they are the best way to achieve crystal clear water. Anything that isn't directly exposed to the UV light will still grow microorganisms though so while the coolant will not have much growing in it, the insides of the tubing can still be encrusted.

Quote:
Originally Posted by Unicr0nhunter View Post

I'm not convinced it must be algae. Could be I suppose, but also sounds to me like it could be plasticizer instead, which would make more sense considering the use of an EG coolant. Also, every example I've seen of algae it usually wants to concentrate in certain areas in a loop, but plasticizer often spreads everywhere throughout the loop, which sounds more like what the OP describes.

I'm new to watercooling so I haven't read all the discussions on plasticizer but I did a little Googling and came across some interesting tidbits. Plasticizer leaching really isn't leaching but is released by scouring of the tubing so, all things being equal higher flow = more leaching. The plasticizers for PVC are described as oily substances but if they're being released by scouring then particulate matter should also be released.

One paper found organic compounds were leached into the fluid. I wouldn't be all that surprised if what we're seeing is actually biofilm formed by microorganisms feeding off of organic constituents leached by the tubing. If I ever find build-up in my loop I'll put it under a microscope.

http://books.google.com/books?id=WwT8eo_-zw0C&lpg=PA2&ots=Dlbvf1I0Hs&dq=leaching%20pvc%20tubing%20plasticizer&pg=PA1#v=onepage&q&f=false

Quote:
Originally Posted by Maximization View Post

i have uv lights in my pedestal, but i doubt it has an effect

Only UV-C light is germicidal. The UV lights used in PCs are probably UV-A and much less dangerous to your eyes.
post #18 of 26
I will concur that UV light will kill algea. I know that much from my hydroponic 'tomatoes' growing days.
But I beleive the UV light used in our PC's is much too weak to effectively work against algea.
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post #19 of 26
With EG and biocides in your loop, the chance of it being algae or other growth is nil. Like previously said, just plasticizer, brown tubing with inner wall deposit is the norm with many types of tubing with plasticizer. You can get primochill advanced LRT tubing or other tubing which is phthalate/DEHP plasticizer free and you wont have that issue.
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post #20 of 26
Thread Starter 
There appears to be a brown gunk in the water itself. Is this typical of plasticizer issues?
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