I assume by "Trimix" you mean hypoxic trimix. Two deco bottles aren't required for moderate normoxic dives.
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I assume by "Trimix" you mean hypoxic trimix. Two deco bottles aren't required for moderate normoxic dives.
If Tech 1 teaches you to manage a single bottle only then what kind of mix up can happen? Either you are switching to it or you are not switching to it.
Makes a strong case for diving with a buddy and verifying switches as a team.Stuff happens.
I have a good friend that is a highly experienced cave and trimix instructor. He was doing a cave dive at Manatee Springs with just doubles and a deco bottle, no stage bottles. He allowed himself to get distracted when he picked up his deco bottle, didn't pay attention to the depth, and accidentally switched to oxygen at 45'.
I know another guy that went into the water breathing pure oxygen with a plan to switch at 20' to bottom gas (32% nitrox) before continuing down to 100'. He forgot to switch to his back gas, stayed on oxygen, and toxed/convulsed at 90'.
The list goes on -- I can talk at length about the people I know that jumped into the water with valves off.
Makes a strong case for diving with a buddy and verifying switches as a team.
It'll cook your goose.