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TDI Equivalent Ratings with Other Scuba Diving Agencies

The goal of posting that equivalency chart was to provide a resource for divers and dive professionals to help navigate the web of diver certifications.

Are You Ready to Become a TDI Instructor Trainer?

TDI Instructor Trainers (IT) are viewed in the industry as the most knowledgeable, experienced, and talented dive educators. They are considered the top of the top or the crème of the crop.

Fear and Loathing on the Internet 20 Years Later

The article titled, “Fear and Loathing on the Internet” that inspired this blog entry was written by one of the founders of TDI, Brett Gilliam, to announce Mr. Irvine’s expulsion from TDI.

Why are Prerequisites Important in Technical Diver Training?

Prerequisites can be found in the Standards and Procedures for any course you are interested in taking.

SDI Advanced Adventure – What Does it Qualify Me to Do?

What do you “get” out of the Advanced Adventure course other than a better idea about where you want to focus attention? Well…

How to Deal with Divers Who Have a Bad Attitude

My student can do all of the skills but something just doesn’t seem right.

Just How Simple are Rebreathers?

Because of your responses, we felt it important to put our previous article into context.

What’s New in Technical Diving for 2016?

Each year the world of technical diving seems to progress leaps and bounds. There is always a lot to keep up with between equipment advances, exploration projects, new educational programs, physiological and scientific research studies, and more.

SDI vs. TDI vs. ERDI – What’s the difference in the diving courses?

We get questioned a lot on what the difference is between SDI, TDI and ERDI courses, so we decided to put it out there where it’s easy for everyone to find when they start doing research.

The P-Valve Struggle

First things first, if you don’t know exactly what a P-valve is, it’s pretty basic. Essentially, it’s a tube that has a valve on one end that vents to the outside of your dry suit that allows liquids to pass from the inside of the suit to the outside. Want to know more about the ins and outs of P-valves and our tips to make the process go smoother? We got you.