INSTALLATION - FINISHED LOOKS
We decided to start the installation of the kit by mounting the water block (took less than 5 minutes to do so).
Next on the list was the radiator which was very easy to install since the 900D has room for radiators up to 480mm long.
Unfortunately since the entire tower is filled with 140mm fans by Noctua our only way out to install the pump/radiator combo was the one at the rear (140mm as well but it wasn't as hard to mount it there as it was in every other place).
According to the installation manual this is the correct placement of the tubings although we did think that connecting the pump with the top port of the waterblock was a better choice (not that it would really affect our results).