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Old 5th January 2007, 07:18   #75 (permalink)
Drmike
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Current Rebreather/s:
MK 15.X
Ouroboros
Other CCR
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Other Rebreather/s:
Inspiration Classic
Other CCR
Home Build
 
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Re: Minimising Rebreather Deaths / Fatalities

Quote: (Originally Posted by sabgia) View Original Post
How does manually flying eCCR deliberately more dangerous? It is simply an exercise that is aided by the sound of the solenoid going off ("a poke in the ribs" as stated by Micjan). The resulting habit creates the sought for value with no cost (i.e. risk) whatsoever.

People always go on about listening for their solenoid but a thick hood and/or ambient sound can easily and often supress the sound of a solenoid going off. It is bad practice to rely on that. Some units the solenoid makes very little sound especially in my experience as they start to get old and jam up with rust.


I agree other that the risk of crappy setpoint control the only other small risk is your solenoid is not frequently firing so how do you know it will when it needs to? Running manually you are not constantly verifying the solenoid is working (as you are by default when running eccr) In my experience bits of dive kit that infrequently get used (such as bail out 2nd stages ect.) have a habit of gumming up quite quickly compared to those that see frequent use.

btw I put a nice hole in my CL from using manual injections all the time on my YBOD.

I had a injector button fly off leaving a big hole once when using manual injections (again YBOD)


It brings more additional failure parts into play (O-rings seals in injectors, Boris/kiss, Seals and buttons - YBOD, 2nd stage, Meg) more often than running eccr and doesnt keep moving the critical ones - the solenoid. then there is the extra task loading in making manual injections when your hands are busy laying line or trying to bag up that bell. Of course I know these are not big risks. But I dont see any reason/benefit in doing the manual thing at all. Get into the habit of checking displays - thats all you need to do. But hey as long as you are doing that everything should be fine either way.

The only thing that really matters is are you aware of and do you believe the information your cells are giving you.
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Cave diving is a sport
Wreck diving is a sport
Diving in general is a sport

'Rebreather diving' is not a sport
its the delusional obsession with a highly dangerous and often inappropriate piece of equipment

Last edited by Drmike : 5th January 2007 at 07:23.
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