How can I prepare for the Instructor Development Course (IDC)?

The best preparation advice includes writing minimal notes for presentations, making large actions visible to divers during skills, and knowing where to find information quickly rather than memorizing every detail.

Why did my dive computer show a 24-hour warning after a short, shallow dive?

This is likely a no-fly warning common across dive computers after any registered dive. It's advisable to consult the dive computer’s manual for specific warnings and stay out of the water until confirmed.

What are the benefits of inverting the first stage in a single cylinder dive configuration?

Inversion protects hoses in overhead environments and prevents head bumps due to some first stage designs' length on one side. However, optimal hose routing is usually prioritized.

Diving Queries with Mark Newman: Instructor Development and Dive Gear Insights

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Scuba Diver Magazine
on May 11, 2026
at 1:53 pm

Dive into expert advice from Mark Newman on instructor development, managing dive computer warnings, and optimizing dive gear setup for safety and efficiency.

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