The Duct Sound wont stop when the fluid stands still and that is annoying please fix that

It's probably a game engine bug, not a mod one, if in the working segments still 0.00000..001 unit if fluid, for the game engine still a fluid and the sound must be played.

but why when the fluid stands still?

Post a screenshot of ur problem, hovering the mouse on some segments to understand how is the state of the network from the tooltip. Probably u will see a very minor fluid variation, but enough to trigger the sound.

Anyway this is a vanilla behaviour, I don't think we can "get a spider out of the hole", I'm sorry.

i will sent you the screenshot on Discord (OceanOfGaming#3101)