Does an upward facing aquajet in an aquatube (that is, the window side facing upwards with the jet in the bottom) cause any audible splashing?

Thanks for the info. What sort of flow rates are they known to be silent with? More specifically, would you expect higher or lower than normal flowrates to cause these sounds?

It seems to me as though the placement I have in mind for the aquatube is going to make all the mounting plates don't look like they'd be ideal, I would either have the side ports pointing in a useless direction (which I suspect I'll need) or I'd have text going in a funny direction. It looks like the aquatube just has 5 equally spaced holes in a circle, so it wouldn't be hard to mount it right to the case if I knew how far away they were from one another. Can you tell me the radius of the circle they form?