Inspiration Fatalities

[madmole]

Actually PadiScubapro, you were one of the 3 I was thinking of (and I was speaking kinda figuratively). I respect your postings on the Inspiration on the forums. Like me you try and put across a balanced view. You've also a lot more Insp experiance than me (a Lot)

What do you condsider a good use for the unit. Personally I find it easier to dive, more streamline etc than mu twin 12's. My bailout and deco gas is exactly the same for both. I am using mine even for shallow drift dives etc. I find it more relaxing and much more convenoent to not have to woory about saving enough gas for a second dive and being less limited by deco. Although as I tend to dive a lot in the 30-50m range this isn't to much of a saving. I actually feel less stressed on these dives on the Inspiration

Personally the sme arguments were said to me 15 years ago when I was using 2 on stops and Tri-mix on dives. The same arguments were used 25 years ago when the first BC's were out. I think that in 10 years time the RB will be the main unit and OC will be for holiday divers. We just need to change peoples habits and training

Have you done a web search in "Inspiration Training", There must be more folks offering it than there are actuall units!!!!!!

 

[padiscubapro]

O-ring once bubbled...

The implication of this point is that you cannot be sure what the real
ppO2 of the loop is. As the ppO2 is controlled electronically, there
is significant risk here.

Judging by your post I'll assume you have no rebreather training and are just taking many other no rebreather trained peoples musings..

verifying ones PO2 is very simple and is part of basic training.. I'll give a basic example... say you are diving at 30m (an ambient pressure of 4atm) and you are using air as you diluent 21% O2, all you have to do is flush the loop (on an electronic controlled cr you should switch to a setpoint below what your calculated po2 will be otherwise the controller will inject o2)and look at your readout, it should be about .84 (.21x4),
You now have feedback on all 3 sensors on how they are reading..

 

[O-ring]

I think that in 10 years time the RB will be the main unit and OC will be for holiday divers. We just need to change peoples habits and training

Same deal with Nitrox when it was starting to be used in the recreational community. I think someday I will probably dive an RB exclusively....but not until they get them a little more squared away.

 

[O-ring]

Judging by your post I'll assume you have no rebreather training and are just taking many other no rebreather trained peoples musings..

You are right here...no RB training whatsoever..not sure about the experience level of the people posting...that's why I posted here and am arguing with you guys..

verifying ones PO2 is very simple and is part of basic training.. I'll give a basic example... say you are diving at 30m (an ambient pressure of 4atm) and you are using air as you diluent 21% O2, all you have to do is flush the loop (on an electronic controlled cr you should switch to a setpoint below what your calculated po2 will be otherwise the controller will inject o2)and look at your readout, it should be about .84 (.21x4),
You now have feedback on all 3 sensors on how they are reading..

Ok, here's where I lose you. This makes sense, again, remember I am not RB trained. But, the average diver out there cannot possibly understand all that, much less do it with a level of competency to ensure they don't kill themselves. I look at RBs more as a tool for extremely skilled OC divers that need the gas and OC just won't cut it. Other than that, I don't see why people would want to dive an RB since it is so much more complicated than an OC setup.

 

[madmole]

Anyone who understands partial pressures and O/C regulators can easily understand a rebreather. Its all just normal physics

Makes me laugh when most of the people who criticise CCR's dont even know themselves how the kit they wear on OC works (not lumping you in that O-ring). Yet another example of how training standards have lowered in the last 20 years. Knowing how a DV works used to be part of the basic training (as did stripping and cleaning it)

For example, how many people use a regulator and not a DV, come on hands up!!!!!. Sorry guys the thing in your mouth is a Demand Valve. A regulator allows a fixed flow of gas at a regular rate. A semi closed SCR like the dreager are regulators, no such thing in OC. but thats what PADI called it and thats what theyve been mis-teaching for years

 

[O-ring]

...why do you think people keep dying on these things? Lack of training, complacency, the units themselves?

 

[madmole]

Diving Solo, Stupidity, Ignoring basic training and pre dive checks. Exactly the same things that kill OC divers

Look at my site Diver Mole, Your Inspiration Buddy where I have all the FACTS and then have tried to to analyse

I too am disturbed by the fatalities, but I have yet to see any evidence of a fault in the unit, other than if you do it wrong it bites (and its alligator type bites, not a poodle)

I collect the incident reports in an attempt to try and make my inspiration use safer. All they have done so far is make me more paranoid over the pre dive checks. Im still happy to dive the unit

 

[O-ring]

...now I must go educate myself some more.

 

[Fetch]

From WordNet (r) 1.7.1 (July 2002) [wn]:

regulator
n 1: any of various controls or devices for regulating or
controlling fluid flow, pressure, temperature, etc.

A first-stage regulator is truly a regulator. A second stage regulator is ALSO a regulator, as it steps IP down to ambient. Of course, it implements a DV to control release of gas.

I'm sure I dislike PADI more than some people on here, but at least bash them for misinformation, and not your lack of understanding of a word's denotation.

Its especially disturbing, hearing it coming from an expert.

jeff

madmole once bubbled...
Anyone who understands partial pressures and O/C regulators can easily understand a rebreather. Its all just normal physics

Makes me laugh when most of the people who criticise CCR's dont even know themselves how the kit they wear on OC works (not lumping you in that O-ring). Yet another example of how training standards have lowered in the last 20 years. Knowing how a DV works used to be part of the basic training (as did stripping and cleaning it)

For example, how many people use a regulator and not a DV, come on hands up!!!!!. Sorry guys the thing in your mouth is a Demand Valve. A regulator allows a fixed flow of gas at a regular rate. A semi closed SCR like the dreager are regulators, no such thing in OC. but thats what PADI called it and thats what theyve been mis-teaching for years

 

[madmole]

In English (as opposed to American ), common use for "Regulator" means to fix a value. ie a speed regulator on a steam engine, or a pressure regulator on the Central heating (that vents above a certain pressure) or the Flow regulator on your HP hose.

Mind you there are lots of cases of different diving terminology on both sides on the pond

ABLJ/Stab/BC
Flippers/Fins
Frogman/Diver
Pants/Trousers
shorts/pants
SPG/Contents guage
George Irvine/Bigot
etc, etc etc