Bubbles in water cooler

fluffysheap

Junior Member
Jun 12, 2006
9
0
0
The situation:
I have a Thermaltake Symphony to which I have added a Danger Den Maze 4 GPU. So far so good.

The problem:
The system is full of tiny air bubbles that go into the Maze 4 and accumulate there. I can move the case around and huge bubbles will come out of the Maze 4, so big that I have to think that almost the whole waterblock is full of air. Unfortunately even after I get the air out, little micro bubbles keep appearing and going back in and I am back where I started. I have been running the pump for two days trying to get all the air out and still the little bubbles keep turning up. (I have had the PC off during this time).

I am pretty sure I do not have any leaks. I checked all the connections and cannot find any dampness or evidence of any leaks at all. Also, the water level in the reservoir isn't really going down.

So, what is the best way to solve this problem? The options I am considering are:
1) Better pump. The Symphony comes with two of Thermaltake's usual lame 90L/hr pumps, probably getting 60-70 L/hr in reality, which is OK, but not really good. Maybe better pumps could blow those bubbles right through the Maze 4 and out the other side and then I would not have to worry.
2) Add another reservoir to the system before the Maze 4, so the bubbles go in that instead of in the GPU. (Technically since this would be pressurized it is not really a reservoir but you get the idea).
3) Keep waiting and hope the bubbles eventually go away. I mean, the stuff in the hoses is only green because it's coolant, right? It's not actually Mountain Dew or something? :)

I'd go with option #1 but I don't particularly want to take the stock pumps out (just because of the hassle), and I don't think adding a bigger pump in a system with two little pumps is really going to accomplish much. #2 is actually looking pretty promising (I could make a suitable tank out of a jar or something) but seems sort of goofy.

I could add a T-connector at the top of the system to bleed air out, but then I have to watch it constantly to make sure it doesn't overflow or suck in air, so it's sort of a hassle - I'd rather come up with something that doesn't require constant manual intervention.

Well, there's also option 4, run the system as-is and hope the waterblock works well enough to keep the card cool, but that's not really all that great.
 

HardWarrior

Diamond Member
Jan 26, 2004
4,400
23
81
I'm not familiar with your cooler, so take that into account. It sounds like you're got a suction-side like, perhaps at the inlet of one of your pump. Tighten down yours barbs all around and see if that helps. As it is, your res should have scoured out any residual air by now, so I don't think shot-gunning parts will help.
 

Billb2

Diamond Member
Mar 25, 2005
3,035
70
86
Sounds like a combination of low flow rate and too small of a rez.
The pump(s?) can't move the water fast enough to keep the bubbles from coalessing in the block, and the rez just lets the bubbles go through.
Cheepest solution is to leave the pump(s) on and just keep tipping and hope the rez eventually catches all teh bubbles. Will be hard because the block is also capturing them. I've seen systems take a week to bleed.
The above assumes there are no suction side leaks.
 

nealh

Diamond Member
Nov 21, 1999
7,078
1
0
Hmm..how long has this been going on...radiators can trap air and be a constant source of bubbles

most systems should be bleed out all the air after a few days....are you using any clamps on the tubing on the various barbs? I like a worm drive(metal clamp)

I had an issue with a reservoir and bubbles too...dont laugh must I did not realize one the ports was inlet and the other was outlet....so I had it reversed and this cuased a bubbles because one side of the reservoir was taller to trap any air and help bleed the system
http://www.cooltechnica.com/Merchant2/m...uct_Code=HDPE-BayRes&Category_Code=Res

anyway..redid the loop and dumped the reservoir and only use a T-line