Hey good vidéo. Maybe next time don't put a music in the background please

Hi Prof, Its nice video and thank you for uploading. You explained where to put the membrane. I think this is for flat sheet membrane. How about hollow fiber membranes. The position for both is same or different? Thanks once again

Whats the size of the pours on the membrane and what is the material comprised of?

how long does it take to fill up the vacuum tank since diffusion will be slow.