Weird water color

[Nepoxx]

Hi guys,

I've had a watercooled system for a while and never had any issues. The current fluid in my loop has been there for a little under a year now, with the PC running almost 24/7. The liquid has a strange yellow tinge (I'm colorblind, could be green) to it, what could it be and what can I do to prevent it in the future? Is purging the liquid and refilling going to solve this or can this be a corrosion issue?

The liquid I have is clear Feser One.

This is my radiator: http://www.xs-pc.com/radiators-ex-series/ex280-dual-fan-radiator (copper/brass core)
My CPU block: http://www.ekwb.com/shop/blocks/cpu-blocks/supremacy/ek-supremacy-acetal.html (Acetal)
My GPU block: http://www.ekwb.com/shop/ek-fc7970.html (Acetal Nickel)

Here's a picture:



Any suggestions are appreciated

Thanks!

 

[GTXJackBauer]

to OCFs.

To me the top half looks fine and the bottom half has a slight tint but it could be the reflection of the background. I used to use Feser fluid and a different tubing (I think it was Feser as well) that I'm using now as I was getting plasticize and clouding issues that had a slight yellow tint to it. Not sure what tubing you're using but if it was me I'd be on what I have now, PrimoChill Advanced LRT tubing and distilled water with a biocide (silver killcoil or deadwater). I used to use clear Feser One but got rid of it and the tubing as I haven't looked back ever since.

I just flush the system every 6 months and do a complete tear down and clean up annually as always advised. Some have kept their systems going for years with no issues but that isn't recommended.

 

[Nepoxx]

The water is indeed cloudy, it depends on the angle of viewing and lighting of course. I'm overdue for a full flush, so I'll do that. Any recommendations for cleaning? I'm reading a lot of conflicting information on cleaning (vinegar with distilled water, etc.).

Thanks

 

[sobe]

I would say do a 25% white vinegar/distilled water for flushing, and get a toothbrush if doing a full teardown and use either white vinegar, lemon juice, ketchup, or other resources that provide the needed cleaning power for cleaning the blocks.

 

[GTXJackBauer]

I just flush it with distilled water and fill her back up. If I believe there is a reduction in flow or some type of buildup, I would than do a complete tear down and use the ingredients if needed as previously stated.

 

[Flat-6]

Since the water still looks clear it tends to suggest that you don't have any plasticiser or other buildup issues - What is your tubing like?

It may just be some soldering flux residue from your radiator which has dissolved in the water over time - this would give it a slight yellow tint.

As Jack stated - If you are not having any temp/flow issues I would simply drain then give it a good flush with distilled [maybe repeat once or twice] then refill with your preferred coolant.

I prefer to not use anything like vinegar etc when flushing as this can cause you problems down the track if you cannot remove 100% of the vinegar from your loop.

 

[GTXJackBauer]

As Jack stated - If you are not having any temp/flow issues I would simply drain then give it a good flush with distilled [maybe repeat once or twice] then refill with your preferred coolant.

I prefer to not use anything like vinegar etc when flushing as this can cause you problems down the track if you cannot remove 100% of the vinegar from your loop.

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