No matter how much you raise the emergency drain in the overflow box you are still going to get a waterfall sound from the weirs
if you run a high speed return flow and if the waterlevel in your aquarium is wavy from the wavemakers.
I created this in tinkercad with beginner cad skills but it supersilenced my eshopps eclipse L overflow box. Print it twice for the Eclipse L.
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if you run a high speed return flow and if the waterlevel in your aquarium is wavy from the wavemakers.
I created this in tinkercad with beginner cad skills but it supersilenced my eshopps eclipse L overflow box. Print it twice for the Eclipse L.

3D design Eshopps overflow weir silencer | Tinkercad
3D design Eshopps overflow weir silencer