The listing, Jokari soda dispenser has ended.
Pour that first glass, and then promptly cap with the Soda Dispenser, taking care not to over-tighten. After 30 minutes or so, pressure will have built up sufficiently in the bottle so that you can successfully dispense. You'll know you're pressurized, as the bottle again feels unopened when you give it a squeeze. On dispensing: for maximum fizz in your glass, always dispense with the button fully-depressed. That said, instructions state that one should give the bottle a gentle shake before dispensing - don't do that. Granted, the soda will come out gangbusters, but it almost always ended up in a flat drink, even with fresh soda.