[koyasha]

My old noogleberry hand pump had a button on the side that releases the air. There are probably videos on youtube as well.

Thank you for your reply. So I would have to attach the pump again to get the air out? That would suck in an "emergency" aka someone knocking on my door and me having to take the dome of as quickly as possible lol.
I watched Manika-Nia's video on youtube, but she didn't show how to release the air. I couldn't find another video