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.
3. Double check that you installed the gas cylinder correctly. 
4. Never add flavours 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.