Micro bubbles/froth

[SirConfused]

So I've just changed my loop configuration having bought a new cpu/mobo due to the cpu being in a different position. I've got an ek d5 built in to a small res and previously I was using the 2 ports on the side as in/out but as per the pictures I've switched to the in going in the lid.

Since doing this, I'm now getting an enormous amount of bubble formation when the liquid goes into the res and none of the standard tricks are doing the job of clearing any of it out at all.

I've tried all the tilting/adjusting of pump speed business but nothing is doing the job.

Any help would be appreciated!

First picture is the loop running, second is what happens when it's turned off.

first pic
second pic

 

[Dirk Diggler]

Make it go into the lower port via a 90 fitting.

 

[LuckyBenski]

Looks like either you're unable to get some air out of the loop and into an airspace (which would normally be the top of your res) or the bubbles are being recirculated before they can settle in the top.

Either way I think it's because you have tubing at the top of the reservoir. The space where air normally collects now has an escape route upwards, so air will naturally head up that way and be back in the loop. Even if this weren't happening you might find the sheer flow speed from top to bottom of the res keeps bubbles caught in the flow, straight from inlet to pump.

 

[MrMD]

You need a multiport top for your res and and an internal tube to get the air out your loop and remove the bubbles



https://www.overclockers.co.uk/ek-water-blocks-ek-res-x3-internal-tube-12-16-40mm-wc-837-ek.html
https://www.overclockers.co.uk/ek-water-blocks-ek-res-x3-multiport-top-white-wc-834-ek.html

 

[Jamin280672]

How are you filling the loop having the return connected to the top like that ? or is that a rotary fitting ? really if you want to return to the top then you need the EK multiport top, that pump/res combo you have there is designed to have the return down by the out, the top is for filling and bleeding the air out, that's why you have the air caught in the system.

Usually whilst leak testing, ill leave that very top screw out so air can escape from somewhere.

I see MrMD beat me too it whilst I was typing this.

 

[SirConfused]

I was hoping that wouldn't be the answer but I guess I'm ordering some parts then.

Thanks for the quick responses folks.