Technical Diving

Sofnolime, Molecular Products, rebreather news, Rosemary E Lunn, Roz Lunn, X-Ray Mag, XRay Magazine, scuba diving news, scuba gear, dive kit,
From today divers can now purchase Molecular Products sorb in Mint and Strawberry flavours

Molecular Products launch flavoured sorb

Molecular Products have proudly unveiled two new versions of their popular 797 sofnolime today. We gather that it has been specifically targeted at the diving market, enabling rebreather divers to purchase a flavoured sorb.

This new range has been launched with two flavours; strawberry and mint. The idea is that the taste fades as the sorb life diminishes, giving the diver an additional way to track carbon dioxide breakthrough.

I heard the strawberry is really good one. Teppo Lallukka

Sorb Advice

On the back of this news, four rebreather instructors have issued some timely advice regarding sorb. 

Sally Cartwright - expedition CCR diver, and former chairman of the Sub Aqua Club - stated "Life is far too important and precious. Don't skimp on lime. People try and save money on fills and push their scrubber time. It's not worth it."

Ten Commandments of Tech Diving Ops, Part II

Cave diver. Photo by Andrey Bizyukin.
Cave diver. Photo by Andrey Bizyukin.

In part one of this series, which appeared in issue #103, I suggested a few commandments to consider in order to ensure, as far as possible, that your technical dives are safe and successful. These were: First commandment: Prepare paperwork; Second commandment: Nominate a supervisor; Third commandment: Deploy safety divers. In this sequel, I deliver a few more tablets of stone.

Ten Commandments of Tech Diving Ops, Part I

An excellent strategy to guard against complacency and protect you and your dive team from becoming too casual about your diving is to establish set operational procedures for all your technical dives.

Today, technical diving is well into its fourth decade. We now have better tools, technology and systems than we did in the past and we know far more about which methods, decompression strategies and gear configurations work well and which do not.

Lessons Learned

For three decades the researchers at DAN have monitored, tracked and analyzed diving incidents and fatalities worldwide. One of the best sources of this incident data is you, the diver. When you self-report an injury or incident that you experienced or witnessed via the DAN Incident Reporting System, you offer a valuable look at real world diving incidents and injuries.

IPE in Technical Diving — Risk & Response

IPE is the abnormal leakage of fluid from the bloodstream into the alveoli, the microscopic air sacs in the lungs. Symptoms include shortness of breath, coughing up bloody sputum, and respiratory distress. Leakage into the alveoli results in fluid buildup in the lungs, and interrupts gas exchange, similar to drowning. It is important to note that fluid resulting from IPE comes from within the body, rather than from inhalation of surrounding water.

Are dangerous and meaningless records being spurred on by recognition by Guinness Book of Records?

Depth record called into question

In September 2014, Egyptian national and technical diver Ahmed Gabr performed a deep dive off Dahab in the Egyptian Red Sea under the auspices and observation of adjudicators from The Guinness Book of Records. After the dive, Gabr was acknowledged for having reached the record depth of 332m, surpassing South African Nuno Gomes who made it to 318m in 2005, also off Dahab.

Interview with Andrea Donati: Pioneering Technical Diving on Ponza for 30 Years

Andrea Donati, owner of Ponza Diving Center, which this year marks 30 years of instruction and service for technical divers on Ponza Island in Italy

In my line of work as a dive industry professional, I attend a lot of dive shows and get to meet a lot of people, most of them nice and interesting in various ways. It was also at a dive show in Italy, many years ago, that I first met Andrea Donati and his partner, Daniela Spaziani, of Ponza Diving.

Why Sidemount is My True DIR Diving Option

Divers in Sinji Cave, Arkadia, Greece. Photo by Matteo Varenna.

Doing something right has never been more important that being ready—and even eager—to change for the better. What was considered great a few years ago is not always great today. All we need is to find a better option, since what was right yesterday, may not be right anymore. Doing It Right (DIR) is about doing it better than it was done before. For me, that is the only right thing to do.

Revisiting Deep Air Diving

The “Flag Room” (360ft/110m) at Diepolder II (Sand Hill Ranch Scout Reservation, Hernando County, Florida, USA) discovered by Dale Sweet in 1979 on one of the first successful mix dives using trimix. Believing it was the end of the cave, Sweet placed a flag there (not shown), hence the name. Sheck Exley dived to the room on air in 1981 in his famous “Salute The Flag” dive. Dustin Clesi placed that guideline shown nearly three decades ago.

Today, the practice of “deep air” diving, and to a large extent, air diving itself has been related to the annals of sport diving history. Nitrox has become near ubiquitous as the diving gas of choice for shallow-water diving, and the trend, as pioneered by Global Underwater Explorers (GUE) is for divers to switch to helium mixes for dives beyond about 100ft/30m.