No Air IN, micro Bubble out the Block

xzb667 · 06-23-2001, 11:41 PM

I just got a maze2 (1/2" barbs), and it performs wonderfully. There is one problem. I have air being added to the line, I thought it was the pump however the out-barb on the block is the problem. No air coming in the intake barb, and a small stream of micro bubbles coming out. When I move the hose for the intake there is no difference, when I move the hose on the outtake barb the amount of air changes dramatically. I investigated the plastic barb clamp (no flat spots), and it is tight. After watching the barb for the longest time, I do not think there is air getting past the barb.

I am getting a tornado of air coming out the outtake barb when the hose is moved to certain positions. I took the block off the CPU, and changed out the plastic clamps with 3 smaller plastic ties per barb. There is no water bubbles getting past the ties, and still it has air trails coming out the outtake barb. With the block resting flat again the floor it produced the least bubbles (sometimes). I submerged the block and barb connections under water (barbs facing up) and no difference. Now I may not be the best observer, but with the block under water, the solid trail of micro bubbles 8" long out the block are not coming in the block. I am stumped, please help.

David · 06-24-2001, 12:51 AM

I personally can't see that as being good...........

Darkhorse · 06-24-2001, 06:15 PM

Are you sure there isn't a large air bubble inside the block that is fragmenting & causing the stream?

The only other approach I can suggest is (if you've got a sub pump) - submerge the lot in a bath or big sink, keep it sealed though. With everthing under water there should be no way air can get into the system. Then try slowly lifting different parts (interconnecting pipes, pump, block, rad, etc) out of the water & see if the air returns. This kind of the reverse of checking for a bike tyre puncture.

Hope this helps.

[b4k4] · 06-27-2001, 09:11 PM

There might be air in the block itself. There could be a large bubble that breaks up at the outlet. You might have a completely closed system and this could still happen. The air bubbles will aerate the water and disappear in the pump probably. When I say disappear, I mean become diffused within the water as not to be seen, and at the water block might get converted back into the bubble due to pressure differances. What you should do is drain your entire setup and then flood it. Take everything out- the waterblock and everything. Make sure the fill line is the highest point in the setup and fill it with water. Turn on the pump and let it circulate for a while to see if you're getting bubbles still. If you are, thre may be a leak in the waterblock itself. Watertight but not airtight.

06-23-2001, 11:41 PM	#1
xzb667 Cooling Neophyte Join Date: Jun 2001 Posts: 6	No Air IN, micro Bubble out the Block I just got a maze2 (1/2" barbs), and it performs wonderfully. There is one problem. I have air being added to the line, I thought it was the pump however the out-barb on the block is the problem. No air coming in the intake barb, and a small stream of micro bubbles coming out. When I move the hose for the intake there is no difference, when I move the hose on the outtake barb the amount of air changes dramatically. I investigated the plastic barb clamp (no flat spots), and it is tight. After watching the barb for the longest time, I do not think there is air getting past the barb. I am getting a tornado of air coming out the outtake barb when the hose is moved to certain positions. I took the block off the CPU, and changed out the plastic clamps with 3 smaller plastic ties per barb. There is no water bubbles getting past the ties, and still it has air trails coming out the outtake barb. With the block resting flat again the floor it produced the least bubbles (sometimes). I submerged the block and barb connections under water (barbs facing up) and no difference. Now I may not be the best observer, but with the block under water, the solid trail of micro bubbles 8" long out the block are not coming in the block. I am stumped, please help.

06-24-2001, 12:51 AM	#2
David Cooling Neophyte Join Date: Jun 2001 Location: Omaha, NE Posts: 40	I personally can't see that as being good........... __________________ It Could Be that the Purpose of Your Life Is Only to Serve as a Warning to Others.

06-24-2001, 06:15 PM	#3
Darkhorse Cooling Savant Join Date: Jun 2001 Location: UK Posts: 103	Are you sure there isn't a large air bubble inside the block that is fragmenting & causing the stream? The only other approach I can suggest is (if you've got a sub pump) - submerge the lot in a bath or big sink, keep it sealed though. With everthing under water there should be no way air can get into the system. Then try slowly lifting different parts (interconnecting pipes, pump, block, rad, etc) out of the water & see if the air returns. This kind of the reverse of checking for a bike tyre puncture. Hope this helps.

06-27-2001, 09:11 PM	#4
[b4k4] Cooling Neophyte Join Date: Jun 2001 Posts: 18	There might be air in the block itself. There could be a large bubble that breaks up at the outlet. You might have a completely closed system and this could still happen. The air bubbles will aerate the water and disappear in the pump probably. When I say disappear, I mean become diffused within the water as not to be seen, and at the water block might get converted back into the bubble due to pressure differances. What you should do is drain your entire setup and then flood it. Take everything out- the waterblock and everything. Make sure the fill line is the highest point in the setup and fill it with water. Turn on the pump and let it circulate for a while to see if you're getting bubbles still. If you are, thre may be a leak in the waterblock itself. Watertight but not airtight.

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