Explaining DIR Rule #6
If you have been on the various scuba diving internet message boards, you probably have seen all kinds of junk written about DIR. One of the most common things written are the “rules” surrounding DIR. Many people make wide speculations about these “rules”. Most specifically, DIR rule #6 gets the most attention. This “rule” has been widely blown out of context. Let’s take a look at the “rule” #6 in detail. Hopefully, you will understand what the meaning behind it is. [Read more...]
Confessions of the Scuba Anti-Hero: Part 1

Your Scuba Anti-Hero
Understanding Tank Factors
“Tank factors? Aren’t those things people should consider when purchasing a tank? Things such as size, color and buoyancy characteristics?” This was asked by an employee at a local dive store when he overheard me talking about dive planning. It didn’t really surprise me at the time as not many people have heard the term tank factor. The truth is, tank factors are a critical part of planning our dives and divers should have an understanding of what they are in order to plan their dives properly. [Read more...]
Evolving Recreational Scuba Diving Courses: Mentoring and Coaching

Duane Johnson - Tech Instructor






