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Tag Archive: management


Sidemount Technical Wreck Diving Subic Bay Philippines

Stress Management in Scuba Training – What can be done about the Panic Reaction? by Andy Davis I’m not a psychologist, but I have noticed some trends when it comes to diver reaction to scuba diving incident stress, and how those trends can be, to a greater or lesser degree, influenced by the effectiveness of […]

Sidemount Technical Wreck Diving Subic Bay Philippines

Choosing and Using A Redundant Air Source By Andy Davis Pony cylinders are a popular choice amongst divers who seek a redundant form of air supply as a contingency for Out-Of-Air (OOA) emergencies when scuba diving. There is a lot of debate about when, or if, a recreational open-water diver should need a redundant air […]

Sidemount Technical Wreck Diving Subic Bay Philippines

Pony Cylinders and Redundant Air Sources for Wreck Diving by Andy Davis Recreational wreck divers often question whether they need to carry a redundant source of air when conducting specialist wreck diving activities.  Most agencies and instructors will generally recommend the use of redundant air sources to be a prudent measure for wreck divers.  However, […]

OXYGEN EXPOSURE MANAGEMENT by Richard D. Vann Oxygen metabolism is the primary energy source in higher life forms, but when oxygen enters the metabolic process prematurely, reactive oxygen species can form which interfere with normal function and cause convulsions or other symptoms of oxygen toxicity. Immersion, exercise, and inspired carbon dioxide increase susceptibility to oxygen […]