The content (amount) holds as described. There is even something in the bottle after 10 normal-sized balloons. However, the filling without loss of gas is only two possible. Our approach: evert balloon over the opening and immediately wrap it with ribbon and fixed nodes, so that nothing can escape to the sides. Balloon hold. The second person opens and closes the valve. When the balloon is full, slide the balloon with tape from the opening and bind simultaneously fixed.
