An introduction to backmount doubles (twinset) diving in the GUE style. This non-certification course is designed to train divers to safely and comfortably operate a twin-tank configuration - covering everything from correct assembly and valve handling to buoyancy management with the additional gas volume.

GUE风格的背挂双瓶（twinset）入门体验课程。这门课不发证，但会从头训练你怎么安全、自然地使用双瓶配置：从正确组装、阀门操作，到带额外气量的浮力控制。

The course covers the handling differences between single-cylinder and twinset diving, and lays the groundwork for divers considering GUE Fundamentals or any technical progression that uses a doubles configuration.

课程会讲单瓶和双瓶潜水在操作上的差异，为想报GUE基础课程，或任何需要双瓶配置的技术进阶课程的潜水员打下基础。

Ideal for certified divers who want to try twinset before committing to a full technical course - or who simply want to experience the GUE configuration in a structured setting.

适合想在正式报技术课程前先试一下双瓶的认证潜水员，或想在标准框架下体验GUE配置的潜水员。

• Twinset assembly, rigging, and pre-dive checks
• Manifold operation - isolator and post valve procedures
• Valve shutdown drills (simulated failures and gas isolation)
• Buoyancy and trim management with the additional tank volume
• Differences in hydrodynamics and balance versus single cylinder
• Gas management for redundancy - how to use both cylinders safely
• GUE team diving protocols as applied to doubles configuration

• 双瓶组装、固定与潜前检查
• 歧管操作，隔离阀与柱阀操作程序
• 阀门关闭练习（模拟故障与气体隔离）
• 附加气瓶容量下的浮力与姿态管理
• 与单瓶相比水动力学与平衡的差异
• 冗余气体管理，如何安全使用两支气瓶
• 双瓶配置下的GUE团队潜水规范

• Open water certification from a recognised agency
• Minimum age 16
• Physically and mentally fit for diving
• Non-smoker
• Able to swim
• Completed GUE registration, medical history, and liability release forms

• 获得任何认可机构的开放水域潜水员认证
• 最低年龄16岁
• 身心健康，适合潜水
• 不吸烟
• 会游泳
• 完成GUE注册表、病历及免责声明

Doubles diving requires a twinset-specific BCD and a paired regulator set. The gear below is what I stock and recommend - click any item to see full details and pricing.

双瓶潜水需要专用双瓶BCD和配套调节器组。下面是我自己用的、也推荐的装备，点击可看详情和价格。