Author Archives: tdisdiHQ

Sam and Sally Panicked Underwater

Panic – A sudden overwhelming fear (with or without cause) that produces hysterical or irrational behavior, anxiety, confusion and often causes wildly unthinking behavior. We’re going to review a panic scenario, how it was handled and the outcome, as well … Continue reading »


Staying Alive on Rebreathers: It Really Is All About Set-Up

By Steve Lewis During the proceedings of Rebreather Forum 3.0 in Orlando, two things quickly became obvious to the dive professionals who travelled to Florida from as far afield as Australia to attend: the popularity of and interest in rebreather … Continue reading »


What Bailout is Best for You? Rebreathers

By Mark Powell A rebreather is a fantastic tool that can be used to extend the range of what is possible in terms of exploratory diving. For deeper and longer dives, rebreathers can significantly reduce concerns over gas usage. That … Continue reading »


Constant PO2: What Is It, and How Is It Different than Nitrox?

In order to understand how constant PO2 in a closed circuit rebreather differs from diving nitrox, we need a quick refresher on physiology. Our bodies respond to the partial pressure of oxygen (PO2), the gas that we breathe, as opposed … Continue reading »


Silent Diving Photography: The Benefits of No Bubbles

Imagine finding the perfect subject to take pictures of while diving: you get your camera ready, settings are in place, you’re getting closer, and you are ready to capture this ideal image in front of you… then you exhale a … Continue reading »


Rebreathers—Are They for Me?

by Jeffrey Bozanic “I’m just a regular scuba diver… what would I want a rebreather for? They are for tech divers!” I hear that all the time. Yes, rebreathers are great tools for tech divers. You can dive deeper, stay … Continue reading »


Rebreather Diving

A Few Minutes with Brian, March 2013 Contact SDI TDI and ERDI If you would like more information, please contact our World Headquarters or your Regional Office. Tel: 888.778.9073 | 207.729.4201 Email: Worldhq@tdisdi.com Web: www.tdisdi.com Facebook: www.facebook.com/SDITDI  


SDI/TDI/ERDI Welcomes Lauren Kieren to the Team

Lauren Kieren started diving in 2002 and has been hooked ever since. Originally from Dallas, Texas, Lauren spent the past few years in the U.S. Virgin Islands sharing her passion for the underwater world by teaching SCUBA and actively technical … Continue reading »


SDI/TDI/ERDI Welcomes Jon Kieren to the Team

Jon is an Advanced Trimix Instructor and Advanced Mixed Gas CCR Diver, qualified on the O2ptima and now the Hollis Explorer rebreathers. Originally from Milwaukee, WI, Jon escaped to the Caribbean in the fall of 2008 where he worked as … Continue reading »


April Events

Below is a list of events where you can find us during the month of April 4/19/13 – ADEX Asian Dive Expo, Singapore 4/19/13 – ERDI & DUI Public Safety Event – DEMOTOUR – Pelham, AL 4/22/13 – FDIC 2013 … Continue reading »