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AD_ward9 · 20th June 2005, 19:52

Quote: (Originally Posted by Mr. Greekbird)

Could you please expand on the above as .... What of a compromised (flooded loop), what sense is there in incorporating the same circuit as a supply path in the case of an emergency..??

The key word is "circuit". The circuit, or loop, is shut off by the shut off valve, which is upstream of the second stage dil demand valve. The shut off valve stays shut until the gas in the head of the scrubber, which is where the gas sensors are, becomes breathable. So if the loop is flooded, the system acts as an OC system. The system has a water dump valve to try and recover from a flood, but obviously there will be situations where no amount of pumping will clear it, such as a severed exhale hose.

On your other thoughts Paul, thanks. I believe strongly that public debate of new "features" is needed, with open publication of data. It is the lives of divers at stake, and public review can often pick up things overlooked by internal review teams which adopt a more narrow outlook.

Cheers

AD

pchanning · 21st June 2005, 13:28

Quote: (Originally Posted by AD_ward9)

... On your other thoughts Paul, thanks. I believe strongly that public debate of new "features" is needed, with open publication of data. It is the lives of divers at stake, and public review can often pick up things overlooked by internal review teams which adopt a more narrow outlook.

Cheers

AD

Such is the way with design. This Forum offers a very broad array of expertise and could make an excellent resource for testing ideas/ concepts. Often however, it remains those that those who come 'fresh' to the subject offer the most testing insight. Dumb questions (for want of a better term) are normally the best.

I look forward to it.

cheers

paul channing

20th June 2005, 19:52	#11 (permalink)
AD_ward9 RBW Member Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Jun 2005 Location: Scotland Posts: 2,011	Quote: (Originally Posted by Mr. Greekbird) Could you please expand on the above as .... What of a compromised (flooded loop), what sense is there in incorporating the same circuit as a supply path in the case of an emergency..?? The key word is "circuit". The circuit, or loop, is shut off by the shut off valve, which is upstream of the second stage dil demand valve. The shut off valve stays shut until the gas in the head of the scrubber, which is where the gas sensors are, becomes breathable. So if the loop is flooded, the system acts as an OC system. The system has a water dump valve to try and recover from a flood, but obviously there will be situations where no amount of pumping will clear it, such as a severed exhale hose. On your other thoughts Paul, thanks. I believe strongly that public debate of new "features" is needed, with open publication of data. It is the lives of divers at stake, and public review can often pick up things overlooked by internal review teams which adopt a more narrow outlook. Cheers AD
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21st June 2005, 13:28	#12 (permalink)
pchanning PFO free :) Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: fixed! Posts: 454	Quote: (Originally Posted by AD_ward9) ... On your other thoughts Paul, thanks. I believe strongly that public debate of new "features" is needed, with open publication of data. It is the lives of divers at stake, and public review can often pick up things overlooked by internal review teams which adopt a more narrow outlook. Cheers AD Such is the way with design. This Forum offers a very broad array of expertise and could make an excellent resource for testing ideas/ concepts. Often however, it remains those that those who come 'fresh' to the subject offer the most testing insight. Dumb questions (for want of a better term) are normally the best. I look forward to it. cheers paul channing
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