Normal
I own the Glacier, what I can tell you after 6 months:Included fans are loud, I replaced them with NH-A12x25The pump always makes a disturbing water noise at start. It is not bubble noise, more water flow noise. It sometimes goes away during gaming and does not come back until next PC restartIt fits easily in the H2O, the tubes are flexible and can be fitted below the PSU. You can orientate the tube connections on the head to point where you want toIt looks subjectively nice, even though it does not matter in the H2O
I own the Glacier, what I can tell you after 6 months: