Bubbles overboard! Sorry that happened, but let's figure out the best way to avoid it in the future. 1. Always make sure your carbonating bottle is filled just to the "Fill Line" indicator. 2. Never carbonate anything other than fresh, cold water. Recommended temperature is 39-46 °F (4-8 °C) 3. Double check that you installed the carbonating cylinder correctly. Heads up: when installed correctly, there is a small gap between the bottom of the carbonating bottle and the base of the sparkling water maker. 4. Never add flavors to the water before carbonating. 5. Carbonate using firm, short bursts (2 seconds each). Note: the Source™ sparkling water maker works best with firm 1 second pushes. 6. Still not sparkling? Contact a member of our Sparkle Support Team, we're always happy to help!