- How can I check if my DUO is out of gas?
- How do I replace the Quick Connect Cylinder in my DUO?
- How do I clean my DUO?
- How do I insert the Quick Connect Cylinder in my DUO?
- How do I carbonate water with my DUO?
- How do I use my DUO Sparkling Water Maker?
- Are existing bottles and cylinders compatible with the new DUO?
- Why does the DUO come with a different type of cylinder?
- Can you tell me more about the DUO?