Filling+Bleeding advise needed

Divx

Divx

Divx

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Joined
7 Jul 2009
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84
Location
Norwich
Hi,

I've read a lot of threads and seen videos about this but I'm still not sure how i can get all the air out of my loop and I'm having the following issues. Please can you advise what i should do to try and resolve them?

First of all, heres a pic of the setup so you know which parts are where:
http://i49.tinypic.com/ny8qk8.jpg
This was taken with only the leds/fans running. Both the pc and the pump were off and you can see all tubes are filled with liquid and the res is nearly filled to the brim.

The pump is a Laing 10W DDC-Pump 12V and an EK TOP

My first concern is the water entering the res keeps changing speed. Every now and then theres a sudden rush of bubbles (about 22 seconds into the vid) and then it dies down again. I presume this is air being cycled around the loop by the pump?
www.youtube.com/watch?v=SCjsYN5tCGg
I've tried turning the pump on/off every few seconds, tilting the case at an angle (90 degrees), shaking it and swinging it left and then right and leaving the top of the res open for some time. I get a lot of air travel along the tube from the top rad to the res, but the problem persists. I've been doing this for a week now.

The next problem is air sitting in the tube:
http://i50.tinypic.com/2h2o774.jpg
How do i fix this? Should i add more water? I first noticed it when i initially filled the system, i kept adding water untill the tube going to the res was completely full even when the pump is turned off. Though after a week it seems to have returned, my guess is that the air has settled in the res? I see peoples systems with the res nowhere near as full as mine, yet they dont seem to have this issue.

As a result of the above issue, when i turn the pump off, some of the air travels back into the top rad:
www.youtube.com/watch?v=omN_QJlfoPg
Again, do i just need to add more water?

And lastly, the noise from the water entering the res is driving me nuts. I dont want to run the system with all this noise as its worse than on air. It was a lot quiter when the res was nearly full, is this the only way to prevent it?
I could also hear some trickling noise from the top rad that would come and go every ~15 seconds.
Also i was disapointed to see the colour difference of the water in the tubes compared to the res, I'll be using coloured tubing next time i think :(
 
When I bleed my system I need to move the case around on floor at various angles (acute angles) to get the air out of the system, I then leave the pump running for a good hr in the different positions. I used different objects to prop the case up in the different positions :p

Make sure you have the fill port off the res so the air can escape, give it time and your system will settle down.
 
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The air in the res would inevitably go up that input tube I'd expect? Can you not have the input tube entering at the base of the res - that would stop that I think?
 
There will always be air at the top of the res as that where the air rises to, hence why it goes back along the pipe. you will never get rid of it unless your system was completly full with water and had no air in it.

I suggest moving the pipe that feeds back into the res down to the lower inlet of the res on the side. this will make life a lot easier as all the air bubbles will rise out and not be sent back round your sytem.
 
Drain the system, if you can back into the bottle your fluid came in.

Once its empty ( don't have to be 100% empty ) with the res top off fill it slowly with fluid at a rate that keeps feeding your pump enough so it does not suck in air.

Do this untill the all the tubes are full of fluid and your Res is just over 3/4 full, this should push out the most of the air form your system.

stick the lid back on your Res and run the pump for a bit, and you should see some small bubbles flow around the system after a while.

now pop the lid of the res again with the pump running and wriggle your rig a bit untill most of the bubbles have gone ( took me about 20mins ).
 
Thanks for the tips, I'll give it another go.
I didn't plan on putting the input at the bottom of the res, and I'd rather not go down that route. Though I do see how it would make life easier and will bear that in mind. I think I'll try and top it up with water so that the inlet is submerged. If i end up draining the system then i may swap out the anti-cyclone for one of the cylinders that come with the res, I'll put it on the inlet to help submerge it.
I guess that will also help reduce the noise of the water trickling. What do you think?
 
Or just top up the res until the end of the inlet tube is submerged.

Mine trickled when filling from the pump res until it was submerged now its silent.

which remind me to empty out some from my main res tonight as its back filled and drained the bottom res.
 
spixelspixel said:
You need the inlet of the reservoir submerged in water to stop the noise. I take it that res doesn't have a tube going down from the top inlet towards the pump.
Click to expand...

Thanks for your response, I topped it up last night after getting the air out of the radiators again. Its now completely full (maybe a small gap of air under the hole I use to fill at the top of the res, next to the inlet) and its now silent (except for the normal noise of the pump humming) :)
The res doesn't have a tube going down from the inlet, but the top section of the res has two inlets, one of which is about 1 cm deep and this is the one i've used for the loop and its submerged. The other inlet I use for filling and its not filled to the brim, but very close. (hard to explain without taking a picture)
The res does come with little tubes that screw into the inlets, but you cant use these at the same time as the anti-cyclone. I wasn't sure which to use, but may swap them when it comes to changing the water.
Thanks again
 
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