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Advice on Problem! loop is built not enough flow

post #1 of 5
Thread Starter 

Hey guys!

Well I'll be updating my build log, however I've ran into a slight problem.

Seems my loops is pretty restrictiv given I have 6 90 Degree Fittings. I'm using a swiftech MCP35x pump and going through a RX480 and Rx360. The water flow is filled with like air bubbles and I hear a trickling sound through the CPU and Video Card block. . Here's a youtube video showing what's going on with the flow. And is it normal for the water to shoot up like that in the res when I turn the pump off?


Now i'm thinking two things adding a second Pump ontop of the MCP35X which would pump into the inlet of the MCP35X and then out to the rest of the system to create more pressure. Or Re design some of the loop

Let me know

Thanks
post #2 of 5
The one MCP35x should be capable of way more than enough flow for your loop IMO.

My loop is probably a little more restrictive than yours. I have two MCP35x pumps in a series redundant configuration, but have them capped at 50% via PWM control, but they spend most of their time running at 20-30% when I'm not folding.
In my rig, there really isn't any difference in temps between having them both at 30% or 50%, with 100% GPU and CPU use while folding.

Have you tipped the case around to make sure you have all of the big air bubbles out of the radiators?

Once I got the big bubbles out of my radiators, it still took several days for the small bubbles in my tubing and res to finally clear out, and I was still getting the occasional small bubbles belched out from somewhere and gurgling every once in a while for over a week.

As for the water level in the reservoir shooting up when you shut the pump off, Most of the water in the system is above the reservoir, and water naturally seeks its own level.
Edited by Caleal - 4/3/11 at 10:48pm
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post #3 of 5
You definitely still have bubbles in your pump and maybe radiator. Shake the case around and the bubbles will come out.
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post #4 of 5
Add a drop of dish soap. It works wonders on getting rid of stubborn bubbles. (Don't freak out when you see a bunch of fizz - it's just the bubbles being quickly released.)
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post #5 of 5
Almost certainly not a flow issue, you have a beast of a pump.

Trickling sounds as mentioned only happen when you have air in the loop, is your reservoir sucking air back into the loop? That can happen with some res's on high flow loops, you may even want to consider turning the pump down a bit, since you have the option.
    
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