Quote Originally Posted by v0dka View Post
Hey CyberDruid, one question about the pump orientation for you. I wanted to attach my Iwaki MD-20 vertically but read in the manual that it was supposed to be placed horizontally, so that's what I did. I see that you have placed your Iwaki vertically, what's your opinion on this so far, have you run into any problems? Or haven't you filled the system up yet?

Anyway, looks like youre taking watercooling to the extreme. Good job!
Yep I read that thread too and also have read the pdf from Iwaki on it.

I have yet to run the pump. THe reasoning in the thread boiled down to air bubbles if the inlet was facing to earth. SO if that speculation is correct then NP.

However I do know that some motors are not designed to run vertically as this may create wear on a thrust washer or other bearing. That is a legitimate concern. I studied what little I could dig up on the pump and have not been able to find anything useful.

If anyone knows about this spread the word.

I am going to run it this way and see what happens...it's all I can think to do.

Without using elbows or really reworking the whole layout from scratch I can't see how I would be able to do it horizontally.

To run horizontal I would have to discard my compartmental design and run the pump topside beside the rad.I was hoping to minimize the noise and heat of the pump by running it in a seperate Sonex lined chamber.

TBH I wish there was a conclusive word on that so I could know whether to scrap the project and start over or just go for it...