Over the tank filter, silent or noisy?

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Raven_

Feeder Fish
MFK Member
Sep 20, 2007
78
0
0
Sweden
Hi, thinking of building an over the tank filter with a 20Litre container.
Wateroutlet will be through the bottom or one of the sides.
The diameter of the outlet will be 38-46mm and end at or below waterline.
Waterflow will be around 1200-1700L/h.

The aquarium stands right next to my bed so silence is a must so wonder how much noise would a wateroutlet of this design make?
And what can be done to make it more silent?

Regards
 
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