Rebreathers

The Generic Breathing Machine: Front-Mounted Rebreather Innovation

Gregory Borodiansky diving his Generic Breathing Machine (GBM), a front-mounted rebreather he invented
Gregory Borodiansky diving his Generic Breathing Machine (GBM), a front-mounted rebreather he invented

Technical diving instructor and inventor Gregory Borodiansky is qualified to dive 20 different rebreathers. He is also a rebreather instructor on many units and a rebreather instructor trainer. Since Borodiansky has a background in electronic engineering and computer science, he took the features he liked on each unit and designed a front-mounted rebreather. Larry Cohen reports.

Divers, Mine Warfare Personnel, HMS Vernon, monument, Royal Navy, Gunwharf, Portsmouth, Rosemary E Lunn, Roz Lunn, military diving news, naval diving news
The Vernon Monument honours all involved in mine warfare, diving, bomb and bomb disposal - past, present and future

A monument for all involved with mine warfare and diving to be officially dedicated

At present, the dedication event at Gunwharf Quay is provisionally pencilled for Friday, 15 July 2022. The summer date has been chosen, because it is anticipated that Covid-19 will be less of an issue. That being the case, it is hoped that current and former Royal Navy Clearance Divers will be allowed to take part in this important occasion. 

Peter Sotis, pictured in 2013
Peter Sotis, pictured in 2013

Peter Sotis convicted of attempting to illegally export rebreathers to Libya

If the name Peter Sotis rings a bell, it is no coincidence. He was Rob Stewart's dive buddy when the filmmaker tragically lost his life on a deep rebreather dive in 2017, after which he was ostracised by the dive community as well as sued by Stewart’s family for his role in Stewart's death. Both the incident and the lawsuit have been covered in the magazine.

Bailout CCR Course standards outlined

Diver wearing a sidemounted bailout rebreather
Diver wearing a sidemounted bailout rebreather

Rebreathers are great pieces of kit that do away with the need to carry an excessive amount of dive cylinders on deeper dives. However, this advantage is offset by the need to also carry additional open circuit cylinders on which a diver can bail out in case of a rebreather malfunction. Using another rebreather could be a better solution and to that end, a bailout rebreather course has been developed.

Tips for Mixed Teams of OC & CCR Divers

Mixed OC & CCR dive team. Photo by Michael Rothschild
Mixed team of open circuit and closed circuit rebreather dive buddies. Photo by Michael Rothschild

Nowadays, more and more recreational divers are coming into contact with technical rebreather divers, perhaps even being buddied up with one on a dive. What follows are some good things for open circuit divers to know about closed circuit rebreathers. Michael Rothschild gives us a quick glimpse into rebreather diving and what one can expect when diving in a mixed team.

Expired sensors from an Inspiration CCR

Oxygen sensor shortage leaves rebreather divers high and dry

Oxygen sensors, or "cells," which are used in rebreathers have a limited shelf life and need to be replaced every 12 to 18 months. However, new ones are currently not available to the dive community.

In the United Kingdom, oxygen cell manufacturers have been mandated by the UK government to supply cells to the medical industry, leaving the dive community with back orders.

AP Diving announces Firmware update

The vast majority of AP rebreather divers will have been informed of this update by email. However it has come to APD's attention that some of their registered Inspiration users have not received the mailing. This is either because the email address APD has on record is out-of-date or the mailing has been rejected by the individual's spam filter.

AP Diving has therefore made the following request.