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Edit: Cleaned loop, new tubing. Need premix coolant suggestions

post #1 of 11
Thread Starter 
So I have a 2 month old loop that performs quite well considering its my first attempt. Got a stable and relatively cool OC on a 3770k at 4.4GHz and it also cools a GTX 580 SLI, stock clocks atm since overclocking SLI is proving to be a challenge. I was cleaning out the system and noticed that my clear tubing is beginning to yellow. When putting it together I went to the extreme of buying a fountain pump, bucket and water filter and ran distilled water through the loop for 24 hrs after soaking the rad with rubbing alcohol. Since then, no leaks and no sediment in the res so I thought it was clean until now.
I replaced a section of tubing and the difference is clear:


This tubing is called Duralene, bought from sidewinder computers. It was recommended in another thread when I was looking for build help and was told it didn't have plasticizer issues. I used it in combination with clear Primochill Ice. When I shine a light on a piece of the removed tube, there appears to be heavier discoloration on the inner wall permeating outward. My res is totally clean. Is this a plasticizer reaction and is there better tubing out there? Id prefer suggestions of clear tubing without printing on it. Thanks.

-UPDATE-

Got my LRT tubing and coolant in the mail and was surprise to find whispy floating particles floating in sealed bottles of Primochill ICE. Now im totally suspecting the cause to have been the Ice all along. You can see it here:. Set to 720p and watch the red. I know the standard seems to be distilled water and PT nuke but I was hoping to find a pure clear coolant that is premixed with anticorrosive and antimicrobial agents so that I dont need to strip this sucker down all over again. Anybody know if these floaters are normal/ok to have? Is there an alternate premix brand that isn't like this?
Edited by devsfan1830 - 6/7/13 at 4:10pm
post #2 of 11
I've been using Primochill Advanced LRT Tubing with distilled water and a Monsoon .999 Silver Bullet, and I haven't had any discoloration yet. New loop system is about 3 Month's old.

Maybe this is something you may want to consider. thumb.gif
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post #3 of 11
Thread Starter 
I've actually been reading the plasticizer problems thread, that Primoflex tubing is looking real good right now. Should I look at using distilled water instead too? People seem to suggest kill coils will start corrosion of nickel, which is what my GPU blocks are plated with. Some of my fittings may be painted black nickel as well. Coolant preference seems to be all over the map and a premix seemed like a safe and easy alternative and it has been performing well cooling wise.
post #4 of 11
Both my GPU and CPU are Nickel+Acetal, and I've had no corrosion issues. Whatever works best for you though man. The only flaking I ever noticed in my reservoir, was when my kill coil began to expire (for lack of better word).

Note: I kept my kill coil in my res, which is how I noticed that this was causing the flakes to show up.
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post #5 of 11
Thread Starter 
Taking another look, when I look closely in my res, which is made of acrylic and in a drive bay there is a layer of yellow cloudy crap on the bottom when I hit it just right with a flashlight. The liquid itself and the walls of the res appear clean. Is this plasticizer, corrosion, or flux that was never fully rinsed out despite my 24 hr flush? Is there something I can flush the system with that will at least purge this buildup from the rad and blocks? The fact that I just built this system and am still actually paying it off my CC has me a bit ticked off. I expected this sort of stuff maybe a year into the system, not this soon. I thought I covered all my bases when researching this build.
post #6 of 11
Quote:
Originally Posted by devsfan1830 View Post

Taking another look, when I look closely in my res, which is made of acrylic and in a drive bay there is a layer of yellow cloudy crap on the bottom when I hit it just right with a flashlight. The liquid itself and the walls of the res appear clean. Is this plasticizer, corrosion, or flux that was never fully rinsed out despite my 24 hr flush? Is there something I can flush the system with that will at least purge this buildup from the rad and blocks? The fact that I just built this system and am still actually paying it off my CC has me a bit ticked off. I expected this sort of stuff maybe a year into the system, not this soon. I thought I covered all my bases when researching this build.

That appears to be plasticizer; it slowly builds up over time. It normally forms a haze over your components that can be rubbed off with hands, but not water. Here is an example:

uze2u5ym.jpg

Warm water and citric acid will take care of the issue, BUT it will damage your nickel plated blocks. If you really want to get rid of it, your more than likely going to need to take your loop apart.

Flux and plasticizer can look the same, but flux clouds the entire loop rather quickly. Plasticizer takes time to completely cloud your loop. You will need to replace your tubing.

Sent from my SGH-T889 using Tapatalk 2
post #7 of 11
Thread Starter 
Quote:
Originally Posted by mataribot View Post

That appears to be plasticizer; it slowly builds up over time. It normally forms a haze over your components that can be rubbed off with hands, but not water. Here is an example:

uze2u5ym.jpg

Warm water and citric acid will take care of the issue, BUT it will damage your nickel plated blocks. If you really want to get rid of it, your more than likely going to need to take your loop apart.

Flux and plasticizer can look the same, but flux clouds the entire loop rather quickly. Plasticizer takes time to completely cloud your loop. You will need to replace your tubing.

Sent from my SGH-T889 using Tapatalk 2
Sounds like a plan. To clean it real well I was planning on totally dismantling the loop and trying a new brand of hose. I can take apart my blocks no problem and hand clean those and all my fittings. I think i caught it before any significant buildup. I just need a safe way to flush my rad. Is citric acid/vinegar safe for copper rads? I have an alphacool UT60.
post #8 of 11
I have used Duralene extensively over many years now with distilled water + PT nuke and never seen any sort of plasticizer issues like that. I do generally run very oversized radiators so not much temperature in the water, but it has worked well for me.

Perhaps it's something in the Primochill Ice causing a reaction?
    
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post #9 of 11
Thread Starter 
Nevermind.
Edited by devsfan1830 - 6/6/13 at 6:33pm
post #10 of 11
I can vouch for PrimoFlex Advanced tubing. I have been running mine for a while, and not a single issue. I recently helped my friend redo his loop, due to Duralene hazing (less than 2 weeks!) and after replacing it twice with the same results he was fed up. We got some PrimoFlex Advanced Clear from Micro Center, and even with Mayhems Gigabyte Orange concentrate in the loop, it's as clear as new.
   
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