Not getting enough bubbles? Let's work on getting you more!
1. If you haven't added flavour, try carbonating with one or two extra pumps by pushing down firmly on the carbonating button for around two seconds. Do not carbonate if flavours were added.
2. Make sure the gas cylinder is tight enough and retighten if necessary by twisting the cylinder to the right. This may seem like a small step but it can make the biggest difference.
3. If you're still not getting enough bubbles and if you don't hear a sputtering sound when you press the carbonation button, you may be out of gas.