Air in liquid cooling system after bleeding?

[superstubbs]

Hey everyone. First post here, so let me start off by saying thank you to the community. I've gotten lots of answers from here before, so thanks!

Anyways, on to my question. I built my first liquid cooling system this week. I'm an experienced builder, just not with liquid cooling. I have just a CPU loop, with a swiftech reservoir, EKWB XTOP DDC 3.2 PWM Elite pump, EKWB 240 radiator mounted vertically, and an EKWB supremacy EVO CPU block. I put it all together, filled it and ran/bled/leak checked it last night and everything was good. (I did that in my kitchen with a jumped power supply, and the fill tube left on so it was open to the atmosphere) Today, I put in the power supply I intend to use and wired it all up, removed the fill tube, and capped the reservoir. Moved it into its home, turned it on, and now there are a million little air bubbles throughout the tubing when it's turned off. (The tubes were filled with no bubbles while off last night) When it's on and running, the pump is significantly louder than it was, but I'm getting fluid moving through the system and the computer is stable.

My question is, how do I fix this? The system is all put back together, and I wouldn't feel 100% comfortable running it with the top of the reservoir open, as the reservoir is pretty full. Also, is it safe to run the computer like this? I know you don't want your pump just pumping air, but this is almost like a foam, and like I said, it IS pumping fluid. I'm also not experiencing any leaks, and the fluid level is constant. Thanks in advance!

 

[junkeymonkey]

well 2 things come to mind . first you did not get all the air out yet... 2ed there's a leak drawing in air ? seem all there is too it [opinion]

take a make up brush and powder like talc /baby powder and dust everything over and let it sit [off] overnight or a good 12 hrs and see if any powder changes or looks wet or not normal as dry would

 

[superstubbs]

Update: I attached the pump to an external jumped power supply. Ran it for about 20 min and the system returned to its previous, quiet state. (With no bubles in the tubes when off) Now, I unplugged the fan controller cable, to force it to run at max speed. The pump jumped back up in volume, and created a ton of air bubbles. Yesterday while running it, I always had the fan connector on, so I assume it was at its minimum power. Should I bleed the system while the pump is at max power? It seems its actually the pump that is causing the bubbles, so now I'm really confused.

Edit: Here's a link to a video. Is that volume normal for this pump at max? https://vimeo.com/149474039

 

[1LiquidPC]

It look like just from the very high flow rate causing the microbubbles. When running at a lower RPM using PWM on DDC or fan controller, this should go away. I've seen the bubbles when running my pumps at full for bleeding and leak testing. At a lower RPM, they go away after a few days.

 

[junkeymonkey]

you got the intake line at the bottom of the radiator ? so it cant suck in trapped are from there ? air rises to the top ?

just sounds like a leak or pin hole in something to me

just to add the guy above we must of posted at the same time -- ya, give it a few days running and see there can be bubbles that ''stick'' and see if them maybe the cause as they work loose ??

but the amount you claim to have that's a heck of a lot of stuck bubbles [opinion]

''I unplugged the fan controller cable, to force it to run at max speed. The pump jumped back up in volume, and created a ton of air bubbles. Yesterday while running it,''

I hate to think the pump ca draw more water then the Reservoir can supply [then it sucks air]

if you can control the pump speed start low rpm and increase it up slowly a bit observe- increase more and so on until you see air and then back it off a bit and call it good if normal parts cooling/temps is all good at that ??