>>10864011I do not pump water under pressure, I recyclate same water in the in/out chamber...
You've never been on spaceship. You don't let air into space, you vacuum chamber into tank first. Air is scarcity #1. It's hard to get air, we don't waste it.
I actually don't have to pump water twice, because once I can just open valve.
I have to pump water in chamber let's say 1 meter up. That's not really much.. That's not much distance for