Rebreather technology has enabled cave explorers to extend their underwater envelope significantly deeper and longer. As a result, a few teams are pushing beyond the practical...
Launched in 2016, the FATHOM mechanical closed circuit rebreather (mCCR) has gained supporters among deep cave explorers and those distrustful of underwater electronics, who say they...
Forget those ‘leaky valves!’ The mechanical FATHOM CCR’s secret sauce is a specially-designed needle valve that enables divers to dial in their oxygen flow rate underwater...
With helium prices on the rise, and limited or no availability in some regions, we decided to conduct a survey of global GUE instructors and dive...
Launched in early 2020, just as the pandemic was getting started, Dive Rite’s innovative chest-mounted O2Ptima, aka the CHO2ptima, is generating significant buzz among instructors and...
This month we continue our discussion of the migration to closed circuit rebreathers (CCR) and the future of open circuit (OC) scuba for tech diving. Instructor...
By Michael Menduno. Images courtesy of Sean Webb unless noted. There is arguably some confusion in the tech diving community over the advantages and disadvantages of...
by Richard Taylor. Images courtesy of Rob Wilson unless noted. Hindsight can be sobering. Eight years ago, I argued open circuit (OC) technical training was becoming...
How many “deep” open circuit dives would you have to conduct—you are using helium aren’t you?—to pay for a rebreather, training and necessary experience dives? It’s...
Closed circuit rebreathers have arguably become the platform of choice for BIG DIVES. So, does it make any sense to continue to train divers to conduct...
