Pushing fuel from the accumulator's fuel compartment by air pressure through the membrane

[2406]

At zero load factors (in weightlessness), the fuel accumulator in tank number 3 starts working, which ensures the supply of fuel to the engine fuel pumps by pushing fuel from the accumulator's fuel compartment by air pressure through the membrane.

It would be great to have this effect modeled.

https://youtu.be/NQ4mPnKEakM?t=115

https://youtu.be/sWGjdtKv2kk?t=127