Chris,

Neither Pete nor I specified closed-circuit, but that is the type I was 
referring to in my comments. I assumed that is what Pete was posting about 
but you know what they say about assumptions... Pete which type of system 
were you referring to?

Even when talking about semi-closed systems, they involve added equipment, 
preparation and expense which you would not have with OC gear. In addition, 
there are more failure points than with OC but those seem easier to deal 
with, especially in light of the fact that you are probably carrying large 
volumes of gas. Then you have to ask yourself is the semi-closed system 
increasing your efficiency enough to offset the increased operating 
expenses and maintenance. If we are talking about helium/trimix dives then 
maybe you save enough on He to buy CO2 absorbent.

I don't know Chris, you explain it to me. What exactly are you gaining with 
semi-closed? Unless we are talking about long duration dives or remote 
areas of the planet, I just don't see any great advantages. - Tony


______________________________ Reply Separator _________________________________
Subject: Re: 10 Best @ Rebreather 2.0
Author:  chris@de*.de*.co*.uk* at EXTERNAL
Date:    10/4/96 5:30 PM


Tony
>
>Get serious! The application of more complex technologies to offset a lack 
>of intelligence/common sense/care/training is a ridiculous notion.

Since when have semi-closed systems been more complex?

> I've yet
>to hear one valid justification for the average sport diver to engage in 
>rebreather diving.

What do you class as 'valid'?
>
>What makes you think that someone who cannot monitor a pressure gauge and 
>properly conduct a dive with relatively simple equipment would be safer 
>using a mechanically/physiologically more complex piece of equipment?

If you can monitor a gauge and conduct a dive with relativlly simple 
equipment you can dive a semi-closed system

>Sounds like those people shouldn't be diving at all!

There's a lot of them around!!!!!!
Regards

Chris

E-mail:- chris@de*.de*.co*.uk*

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