You need to get the rest of the air out of the loop. If there is bubbles, either you are sucking air in somewhere or there is air stil hidden in a reservoir. Tilt and gently shake to try and break the air pocket loose.

I have never done it, but supposedly a drop of dish soap will pull the air out. I usually just tilt and gently shake until the air breaks loose.

If there is bubbles appearing in your res, there is air somewhere or an active air leak getting into your loop.

Show a picture of your loop.


I don’t want to seem like I am short or anything, but I highly suggest using google:

http://www.tomshardware.c...icro-bubbles-reservoir

http://www.tomshardware.c...ing-bubbles-cavitation


Just a couple of examples for reference.

If you have a radiator at the top of your case, and that radiator does not have a bleed valve at the top, then air can get stuck in the top side of the radiator, even with tilting.

Use a zip tie, rub the bubbles off the wall of the res. If they come back, you are pulling air into the loop somewhere, believe it or not.

Your video didn’t show much, surprisingly. You started to move toward the cpu block and top rad, then went right back to the res. It would be helpful to see the entire loop.

Pictures can show plenty, but a video can show more.

For now, turn the computer off and use a zip tie to break the bubbles loose.

P.s. my d5 pump is great at removing air pockets. I had a bubble break loose two months after building my loop. Two months... sure air may remain somewhere but there is probably small amounts of micro bubbles you can’t see in the tubes.

If you can’t figure it out with anything above, I would suggest the drop of dishwashing fluid trick.

*edit* what is your pump speeds and do you have control over them. Can you speed up and slow down the pump fairly easy? If so, full speed to low speed and back may help also. It will cause more turbulence in the res to move the bubbles and break them free. I run mine at 50% usually.

the_Scarlet_one
Use a zip tie, rub the bubbles off the wall of the res. If they come back, you are pulling air into the loop somewhere, believe it or not.

Your video didn’t show much, surprisingly. You started to move toward the cpu block and top rad, then went right back to the res. It would be helpful to see the entire loop.

Pictures can show plenty, but a video can show more.

For now, turn the computer off and use a zip tie to break the bubbles loose.

P.s. my d5 pump is great at removing air pockets. I had a bubble break loose two months after building my loop. Two months... sure air may remain somewhere but there is probably small amounts of micro bubbles you can’t see in the tubes.

If you can’t figure it out with anything above, I would suggest the drop of dishwashing fluid trick.

*edit* what is your pump speeds and do you have control over them. Can you speed up and slow down the pump fairly easy? If so, full speed to low speed and back may help also. It will cause more turbulence in the res to move the bubbles and break them free. I run mine at 50% usually.

Pump is running around 1300 rpm but will try and run it for full speed at 4500 rpm and cycle the speeds several times as well.
 
Once I get the GPU block, I'll have to drain the system anyway, and that would be a great opportunity to wipe down the inside of the res for any residue.  I prepped the rads but I didn't clean the res before use.  Is it normal to have this happen on EK res's?

Lord Odin
Pump is running around 1300 rpm but will try and run it for full speed at 4500 rpm and cycle the speeds several times as well.
 
Once I get the GPU block, I'll have to drain the system anyway, and that would be a great opportunity to wipe down the inside of the res for any residue.  I prepped the rads but I didn't clean the res before use.  Is it normal to have this happen on EK res's?

I have never had to wipe down my reservoirs and I exclusively utilize EKWB Pump/Res combos. I’ve already stated what I believe it to be.

Your slow pump speed may be the culprit. If it isn’t causing enough turbulence, that may be the explanation for the bubbles.

GGTV-Jon
Lord Odin why so slow on the pump speed? If the speed is so low that it does not cause turbulence in the blocks and radiators you get air trapped AND your cooling efficiency is dropped due to laminar flow of the water
 
Unless there is a noise concern just run that thing at max

The pump speed is on a curve; not constant.  It only runs that slow during idle.  I haven't had a chance to push the CPU to require a higher speed yet because I'm not benchmarking until I get the GPU in the loop.  I want to know how the whole loop is going to behave as a system rather than as a component and then have to change settings again.
 
That being said, I did try running the pump full throttle all night last night but no bubbles worked themselves out of the rads or from the res walls.  Like you guys alluded to, I was hoping for some turbulence to break those bubbles free in the res but they're not even wiggling.  I'm wondering if the anti-cyclone foam is preventing that.

WAIT WAIT WAIT..
 
After looking at your picture and the video, the fitting in the top of the res is the return correct? What I don't see is a down tube inside the reservoir.
 
If it is the way I am seeing it if you just have the return to the res in the op and no down tube inside the res you have the coolant falling through any air space at the top picking up air.
Down tubes prevent this, tube should be 1/4 to 1/2 the way down I think
 

Lord Odin
I've tried tipping the case side-to-side and front-to-back.  I didn't want to flip if over because of the fill port on top, although everything is sealed.  Just didn't want to risk leaks if I didn't have to.
 
The top of the res is the fill port.   The IN port is in the bottom-left.  The OUT port is in the bottom-right. (I can markup a pic if needed)
 
Also, res is filled to the top if that makes any difference.  Even tried burping the system from the top fill port in case of air pressure build-up after initial temp build.

Carry on then.. thought perhaps one port on the bottom was a drain and the top was your return / inlet

After I add the GPU, think I’m going to not fill the res as much and use a bendable straw to stir the bubbles out like a glass of soda. The. Top it off after.

I don't think anyone is actually listening to what I'm saying...
 
Thanks anyways.