Originally Posted by djjohnnmerry
So I have had my 360 for about a year - and now the noise is a nightmare with the pump - has anyone else had this? Know any good fixes? To stop the noise - I guess as I added the extension tubes that made it worse as well as I can't fill fully - also the fill caps dents way to easy - can you get replacements?
Yes me.. I had the same issue and i even made an video of it here: https://www.youtube.com/watch?v=tCMqqniIsnc
The problem is that air gets trapped behind the impeller which makes the noise. Its very hard near impossible to get rid of the air that is trapped behind the impeller but i found an solution.
My first unit was making an terrible grinding/gurgling noise as you can hear in my clip. I refilled the unit several times outside of my case and hold it upside down, tilt it and did everything in order to get rid of the air and finally it worked. After i installed it again the noise kept coming back...
Send Alphacool and email about this and after a few weeks i finally got an replacement with "a new design" according to ALphacool rep here.
Its the same pump DC-LT2600 low noise and reservoir and it wasn't more quiet than the first one.. When i tried to install the tubes including the quick disconnect fittings i discovered that they were very poor quality and the threads on the quick disconnects were completely stripped and i couldn't use it anymore as its poor quality plastic.. I send an email about this issue and that the pump is still making high pitch noise. He replied that that is not possible and that he picked the pump right of the assembly line in order for me to get an working and "better" pump.
I said that its the same pump but he kept claiming that its an different unit.. I told him about the broken quick disconnect fittings too this was his response:
"it is not a pump design fault, we are selling hundred of Eisbaer AIOs every month an we are producing a lot of OEM products for other brands, the car industrie is using this pump without issues.
I know that the pump is well, because you got a Eisbaer Solo from our testing line. The only issue you can have are small or micro bubbles inside the pump or if you have not enough water inside the reservoir. If yu can, try to run the pump with 7V, than with 12V, and again with 7V, maybe that helps.
Sorry, i`m not sure what you mean with "stripping the plastic threads".
I explained to him what happened but i never got any answer back unfortunately so i had to come up with my own solution. I am not using the quick disconnect anymore, here is what it looks like before and after:Warning: Spoiler! (Click to show)
Warning: Spoiler! (Click to show)
I also discovered that the tubes were too long in my case and that the one with the quick disconnect is hitting my exhaust fan. I had to use tight bend in order to make it fit but the metal spring around the tube is making it harder to bend and is causing a bad indentation in the hose which overtime has the possibility to leak..
Anyway, i don't use the quick disconnect anymore and i got higher flow and the air is more easily to remove because of the higher flow rate. Now the pump is fairly quiet and i can't hear it above my other fans. Sometimes i still have this grinding/gurgling noise but i play with the pump rpm a bit and its gone pretty quick.
Hope this helps, if you have any questions feel free to ask and i will help where i can