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Since the introduction of the Aqua Lung in 1948 there was a concern in the sport about diver distraction and running out of air. The very first units to reach our shores came equipped with a J valve--a special valve that when activated released a predetermined amount of reserve air (300 to 700 PSI) However the double hose regulator's propensity for increased difficult in breathing when low on air, gave the diver a certain amount of warning and generally, but not always, allowed the diver to perform a normal ascent. If not it was "blow and go flair and you are there..."
With the introduction of the single hose regulator to the American market in 1954 (54 ?-Rose Pro) there has been increased concern since the single hose generally had better flat line breathing characteristics and did not present a warning of restricted or reduced breathing effort as the double hose.
This gave rise to the reintroduction of the long dormant seldom used SPG allowing the diver to monitor his air supply, rate of consumption and especially air remaining, which was initially and generally ignored.
The industry recognized the problem and developed a number of solutions, Heathways and SCUBA Pro developed regulators that would emit a audio alarm, Desco introduced a mask that had a ever so tiny light that warned the diver of low air, US Divers (aka Aqua Lung) created a special valve that struck the interior of the tank when air supply was low creating a very loud banging sound. All of those innovations were also ignored by the diver of the era and have also been discarded with the passage of time.
Now the diver has every instrument possible to monitor every conceivable function -- Yet the instruments are still ignored and divers are now distracted by their cameras while engaged in taking photographs. They buy the farm in 25 feet of water with never a thought of "ditch, blow and go flair and you are there."
This death reflects not only on the class instructor but also on the poor quality of diving instruction from the basic diver to the super duper poper instructor and any agency that allows any one with minimal water skills and the funds to advance through the ranks to wear the patch of a SCUBA Instructor.
SDM
NAUI Instructor number 27
Ken, Joe went out of business a few years ago, then reopened again with new partner and $$$ It is suggested that google :
Dive and Photo, Orange County's Scuba Dive Shop
*
About Dive and Photo, Orange County's Scuba Dive Shop - 14k - similar pages
Joe Liburdi's Dive and Photo is also the Orange County Scuba Store and Dive Shop featuring sales, service and Scuba Diving courses, certification and lessons .
Lets get together at the SCUBA Show-I have a few not so well known historical items I would like to pass on to you. I will be with Pat Smith
SDM
---------- Post added April 22nd, 2013 at 07:51 AM ----------
Has this thread run it's course?
No more comments?
Frankly I found it very interesting early morning reading..
SDM
With the introduction of the single hose regulator to the American market in 1954 (54 ?-Rose Pro) there has been increased concern since the single hose generally had better flat line breathing characteristics and did not present a warning of restricted or reduced breathing effort as the double hose.
This gave rise to the reintroduction of the long dormant seldom used SPG allowing the diver to monitor his air supply, rate of consumption and especially air remaining, which was initially and generally ignored.
The industry recognized the problem and developed a number of solutions, Heathways and SCUBA Pro developed regulators that would emit a audio alarm, Desco introduced a mask that had a ever so tiny light that warned the diver of low air, US Divers (aka Aqua Lung) created a special valve that struck the interior of the tank when air supply was low creating a very loud banging sound. All of those innovations were also ignored by the diver of the era and have also been discarded with the passage of time.
Now the diver has every instrument possible to monitor every conceivable function -- Yet the instruments are still ignored and divers are now distracted by their cameras while engaged in taking photographs. They buy the farm in 25 feet of water with never a thought of "ditch, blow and go flair and you are there."
This death reflects not only on the class instructor but also on the poor quality of diving instruction from the basic diver to the super duper poper instructor and any agency that allows any one with minimal water skills and the funds to advance through the ranks to wear the patch of a SCUBA Instructor.
SDM
NAUI Instructor number 27
Ken, Joe went out of business a few years ago, then reopened again with new partner and $$$ It is suggested that google :
Dive and Photo, Orange County's Scuba Dive Shop
*
About Dive and Photo, Orange County's Scuba Dive Shop - 14k - similar pages
Joe Liburdi's Dive and Photo is also the Orange County Scuba Store and Dive Shop featuring sales, service and Scuba Diving courses, certification and lessons .
Lets get together at the SCUBA Show-I have a few not so well known historical items I would like to pass on to you. I will be with Pat Smith
SDM
---------- Post added April 22nd, 2013 at 07:51 AM ----------
Has this thread run it's course?
No more comments?
Frankly I found it very interesting early morning reading..
SDM