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how the pee valve work? put the pee away by a pipe something else?
Well...you could feed it to an internal hydration pouch to be recycled, but most people use a pee valve to vent it overboard.
For guys it starts at a condom catheter which is connected to a tube which is attached to the pee valve which either has a pee through bolt with a hole in it or a one way valve that lets pee out but prevents water from coming back in.
For girls it is pretty much the same except rather than a condom catheter they use an odd little sting ray shaped device call a she-pee that is glued on (temporarily).
Yes, back where it came from.
This is actually true.
It still fascinates me. Maybe there's hope for me.
Me too. Just imagine, the water that we drink today may have evaporated out of a giant, greasy T-Rex poo.