Waterfall in Radiator

Quantum-192

Quantum-192

Quantum-192

Associate
Joined
3 May 2016
Posts
62
Location
Newcastle UK
Hi all. Filled The loop on Evie today and started the bleeding which went surprisingly well and easy. Trouble is I've been left with a strange issue....

The top rad is perfectly quiet so I presume rid of air but on my front mounted radiator (Black Ice SR2 280) I have a small waterfall like trickling sound which I assume is due to a trapped air bubble.

On this rad I have both the loop input and output at the top of the radiator with the output returning to the reservoir. I have tried all kinds of case tipping a pump pulsing but can't get rid of it.

Only thing I can think of now is cracking open one of the other radiator blanking plugs to try and bleed the air out that way (until coolant flows out)?

Any thoughts on this waterfall tricking sound and how to get rid of it as its the only thing stopping Evie running dead silent.
 
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One trick I use is to vary the water flowrate simply by pinching the tubing (difficult with copper I realise, BTW, in total awe of your project!). You could flick the pump on and off to get the same effect. It will go eventually if you just pretend you can't hear it for a while.
 
Just annoying hearing the constant trickling sound coming from the top of the front rad as even on setting 4 the D5 is just gently humming.

I have plenty of flow as the Koolance flow indicator is spinning well - just can't stop the trickling sound whatever I do with case tipping, shaking or switching the pump on and off.

Would cracking open one of the spare rad port blanking plugs be a bad idea? Just thought it might cause coolant to force the air out. Closing it again when I saw coolant appear?
 
Oh well, opening the plugged ports on the rad didn't push the air out.

Opened each plugged port in turn and got seeping coolant at each one straight away rather than bubbly spluttering air which I was expecting :confused:

Flow gauge is spinning fine so must have plenty of flow around the system.

Perhaps I should have the trickle sound as an intentional water feature :D
 
I had that trickle noise at one time, got rid of it by running the case upside down for a day.

It's a most annoying sound.
 
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