• Why is my DUO not carbonating?
• Why am I getting poor carbonation with my DUO?
• How do I get my DUO to stop leaking water?
• What can I do if I think my DUO Quick Connect Cylinder is out of gas?
• Why won’t my cylinder fit in my DUO?
• Why won’t my carbonating flask close or lock?
• Why isn’t my carbonation bottle cap properly closing the bottle?