Quote Originally Posted by ChielScape View Post
the output facing down is OK, just not the input, it would have to suck the water up and pumps arent good at that. besides that the impeller will be pulled down by gravity, increasing wear on the parts.

Are you sure about this? The way I see it, the pump does not have to suck because the water loop exists and the pump is usually at the bottom of the loop. Is there a chance that the electromagnetic field of the pump stator keeps the impeller always in the same position axially?

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