Cooling loop sorta "bubbley"

[Jamarlie]

Heya,
so I built my first custom watercooling loop a while back, about 3-4 months ago.

For the spec part:
It consists of an EK X-RES 140 Evo pump + reservoir combo mounted at the back of my case, an EK Supremacy EVO block, an XSPC 280MM radiator top mounted and Monsoon compression fittings on Primoflex Chill tubing. Diameter should be 13/10 if I am not mistaking.  For cooling liquids I use EK's EKoolant.
For the loop I pass the water through the CPU block, then up to the radiator and from the radiator a bit down to the pump.

Now to the problem:
When I first had my watercooling setup I ran everything for about an hour under full load with careful surveillance to get all the airbubbles out and check for leaks. I later checked on the system carefully every hour for the past three days to ensure nothing was leaking and all visual airbubbles were gone. When I started the pump a few times on prime I noticed that the coolant was sort of bubbly but I got most of the visible bubbles out the system.
Now this system has been running for a good 3-4 months, not under that heavy of a load I might add.  Never had an issue with air bubbles since it usually never surpasses 50% load even when gaming and recording. 
I rendered a video today, aka 80-90% CPU usage and now all of a sudden I have a few tiny airbubbles passing through the pump every now and then. There has only been one big airbubble after 2 hours on continuous rendering that just passed by and scared the living fuck out of me.
I panic checked the entire loop for leaks as I could see no air get passed into the system yet there seems to be a lot of air coming out of it. I found none, zero. The system is tightly sealed since the day I built it. 

My question is: Are those just bubbles that are still in the radiator and are they something to worry about? My CPU temps seem fine, with a 4790K running at stock clock under full load for more than an hour I get temps in the mid to high 50°Cs. The pump also only turns to max speed once the CPU surpasses 50°C. 
Is it possible that due to the fact that the intake of new water and output of the used liquid are so close by that some of the air that passes out of the loop into the reservoir is immediately sucked back in and I just missed that?

Thanks for your answers in advance!

[Mick Naughty]

Not sure why it would scare you. Did you tilt the system to ensure you got all the air out or just run te pump at full speed while bleeding?

[Jamarlie]

1 hour ago, Mick Naughty said:

Not sure why it would scare you. Did you tilt the system to ensure you got all the air out or just run te pump at full speed while bleeding?

Well air can damage the pump from what I've heard  And if there's too much air trapped in the CPU block it could make it overheat.  Plus the possibility of any sort of leak scares the living bologna out of me.
But yeah, when I was first filling up the loop I only had the pump connected to the PSU and I swung the case around lightly to get rid of access air, also tilted it in a few different ways

[Mick Naughty]

21 minutes ago, Jamarlie said:

Well air can damage the pump from what I've heard  And if there's too much air trapped in the CPU block it could make it overheat.  Plus the possibility of any sort of leak scares the living bologna out of me.
But yeah, when I was first filling up the loop I only had the pump connected to the PSU and I swung the case around lightly to get rid of access air, also tilted it in a few different ways

Well a bubble in the pump isn't the same as running it with no water. Takes time if you don't do it right. Leaks won't hurt anything unless you just leave it. 

[Jamarlie]

18 hours ago, Mick Naughty said:

Well a bubble in the pump isn't the same as running it with no water. Takes time if you don't do it right. Leaks won't hurt anything unless you just leave it. 

Ahhh, okay, so you're basically saying I shouldn't worry? :] If that is the case I am sorta calm. ^^'
I don't assume I did anything correctly on that build as it's one of the very first builds I ever did and I ofc went full retard to build a custom water loop. ^^'

[Mick Naughty]

3 hours ago, Jamarlie said:

Ahhh, okay, so you're basically saying I shouldn't worry? :] If that is the case I am sorta calm. ^^'
I don't assume I did anything correctly on that build as it's one of the very first builds I ever did and I ofc went full retard to build a custom water loop. ^^'

One of my rigs took a week to get the bubbles out after I rebuilt it. Every time I use it for long gaming sessions some bubbles come back. At my cpu because its the highest point that I can see. Prolly mostly due to me deleting the reservoir.

 

Wont cause an issue.

[johnermon]

On 12/31/2016 at 10:01 AM, Jamarlie said:

Heya,
so I built my first custom watercooling loop a while back, about 3-4 months ago.

For the spec part:
It consists of an EK X-RES 140 Evo pump + reservoir combo mounted at the back of my case, an EK Supremacy EVO block, an XSPC 280MM radiator top mounted and Monsoon compression fittings on Primoflex Chill tubing. Diameter should be 13/10 if I am not mistaking.  For cooling liquids I use EK's EKoolant.
For the loop I pass the water through the CPU block, then up to the radiator and from the radiator a bit down to the pump.

Now to the problem:
When I first had my watercooling setup I ran everything for about an hour under full load with careful surveillance to get all the airbubbles out and check for leaks. I later checked on the system carefully every hour for the past three days to ensure nothing was leaking and all visual airbubbles were gone. When I started the pump a few times on prime I noticed that the coolant was sort of bubbly but I got most of the visible bubbles out the system.
Now this system has been running for a good 3-4 months, not under that heavy of a load I might add.  Never had an issue with air bubbles since it usually never surpasses 50% load even when gaming and recording. 
I rendered a video today, aka 80-90% CPU usage and now all of a sudden I have a few tiny airbubbles passing through the pump every now and then. There has only been one big airbubble after 2 hours on continuous rendering that just passed by and scared the living fuck out of me.
I panic checked the entire loop for leaks as I could see no air get passed into the system yet there seems to be a lot of air coming out of it. I found none, zero. The system is tightly sealed since the day I built it. 

My question is: Are those just bubbles that are still in the radiator and are they something to worry about? My CPU temps seem fine, with a 4790K running at stock clock under full load for more than an hour I get temps in the mid to high 50°Cs. The pump also only turns to max speed once the CPU surpasses 50°C. 
Is it possible that due to the fact that the intake of new water and output of the used liquid are so close by that some of the air that passes out of the loop into the reservoir is immediately sucked back in and I just missed that?

Thanks for your answers in advance!

if you never bled it properly, then this will happen

if there are no leaks then you should be fine.