Is this corrosion?

[radmanhs]

I just cleaned out my system and refilled it a couple days ago. It has been a couple days and I already noticed what looks like corrosion on a lot of the tubing/waterblocks in addition to microbubbles. I'm guessing I need to flush it again and deep clean it all.

 

Any ideas?

[AnonymousGuy]

What fluid is this?

 

And it's almost always random shit that comes from the rad.  When you drain and filled again it might have knocked it loose or an air bubble that was sitting there forever and oxidizing moved (happens if the rad is upside down where it can never completely bleed)

 

This doesn't look like it would affect performance though, just cosmetic.

[radmanhs]

It's EKWB Cryofuel. I guess I'll let it run for another day or 2 and see if it gets worse. I know I didn't flush my rads as intensly as I did a few years ago when I bought them, so I wouldn't be surprised.

[For Science!]

2 hours ago, radmanhs said:

It's EKWB Cryofuel. I guess I'll let it run for another day or 2 and see if it gets worse. I know I didn't flush my rads as intensly as I did a few years ago when I bought them, so I wouldn't be surprised.

No, this is not corrosion. To me, the pictures of the tubing just looks like regular microbubbles to me. I find heating the loop with a load (e.g. RealBench) helps move these microbubbles along the way with a decent flow rate.

 

The stuff in the GPU block is coolant that has seeped inbetween the acrylic and the block and "dried" there. Its a common occurance as there is no O-ring that keeps the water out of that region. Its kinda ugly, but not corrosion and will not impact the loop in a big way,

[Sir Beregond]

On 6/29/2022 at 3:01 AM, radmanhs said:

It's EKWB Cryofuel. I guess I'll let it run for another day or 2 and see if it gets worse. I know I didn't flush my rads as intensly as I did a few years ago when I bought them, so I wouldn't be surprised.

I don't see corrosion, it looks more like gunk and that gunk will absolutely affect performance if it clogs up your microfin channels on either waterblock. The GPU block looks worse off in this regard. I'd absolutely drain and clean. It's definitely not just "cosmetic".

 

Crap from the rad is possible, but sounds like these aren't new rads. How did you clean them when you first got them? I wouldn't be surprised if this is also another case of Cryofuel strikes again. It really is a garbage coolant.