The ECU (or Regen) is one of the core components of a Saturation System and Dive Bell

• IMCA D022. Guidance for Diving Supervisors Manual, Chapter 11, Section 18, Page 174
• IMCA D022-ver2 2016 DIVE SUPERVISORS MANUAL, Chapter 2, Section 33, Page 33
• IMCA D050-Minimum Quantities of Gas Required Offshore

CO₂ Absorption is the key function most ECU’s. Soda-lime is the main absorbent used. The amount of CO₂ absorbed with each brand varies (it is always written on the front of the container). For calculating purposes most it is established that: 6 kilograms / per-diver / per-day (regardless of depth) is used.

So 6kg is used in all calculations.

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