Marine Scientist and Master Instructor
- Reaction score
- U.S. East Coast
- # of dives
- 2500 - 4999
The people that designed it would call that a feature not a bug as they don't believe you should be at that depth without helium.
The rule appeared long before helium was popular. Diving to 200 ft on air was common in the US and Europe.
I stole it from the GUE.
Late comers to the game.
Let's track this conversation:“Recent” doesn’t equal “wrong.”
Manatee suggests the Rule of 120 came from GUE.
I said it much predated GUE.
You said recent doesn't mean wrong.
But who is talking about right and wrong? The conversation was about about chronology.
You seem very defensive.