Originally Posted by Annex
My kit is still performing top notch.. The clear primochill tubing I purchased is slightly discolorated now though.. Hoping that it doesn't degrade and ruin anything before I change it out because I wasn't planning to change tubing until after I was ready to get a GPU loop set up.
I would say to shutdown the computer. With the system off, squeeze the tubing. Is it soft or stiff? If it is as soft as when it was new, then depending on the amount of time you are planning on installing that GPU loop (3-6 months maybe?) then you should be ok. It will only get cloudier (hence, ugly) in the meantime. Keep an eye out for the water quality in the res. If that is crystal clear and nothing floating in it, you are still good.
If you feel the tubing stiffer than when it was new then it may be time to consider changing the tubing. The process does take time though... it is not immediate.
With time the tubing will degrade. It has to do with the plasticizers (material used to make the plastic soft and flexible) used in making the tubing. So far it seems to "grow" on the surface of the inside of the tubing and that's it. No reports so far of it detaching from the tubing and floating around in the loop (reason why to keep an eye out for water quality in the res). The big concern of this gunk detaching is that if you have seen the inside of a CPU water block, this gunk could get caught inside the block and degrade your cooling performance. Once again, no one has reported any issues so far but it could be a possibility. Always good to try and stay a step ahead of these issues and prevent them.
How to avoid? Well, mainly by buying plasticizer free tubing which is a bit more expensive. I recall only seeing clear tubing though. Kill coils nor biocides prevent this condition and it has nothing to do with the water you use. It's more the temperature of the water reacting with the surface of the tubing.Edited by Kahbrohn - 4/7/11 at 6:10am