Cave diving on CC is safer than on OC?

[ofg-1]

so the proportion of morons is decreasing. .

You need to come to Florida. .

 

[lostsheep]

You need to come to Florida. .

Original version of your post was much better

 

[Wibble]

It's ridiculous that PO2 alarms aren't standard.

Shearwater computers show alarms with red background and black text. There’s the “High/low PPO2” message

Maybe everyone should dive their rebreather in manual mode rather than relying on the solenoid.

 

[kensuf]

You must be a shut-in. I see more and more morons in everyday life.

Blink twice if you need to be rescued from your captor

Is it that you're seeing more, or is it that your ability to recognize them has improved?

 

[rddvet]

Is it that you're seeing more, or is it that your ability to recognize them has improved?

Nah I’ve been spotting them for years. It’s increasing since the pandemic.

 

[OTF]

Shearwater computers show alarms with red background and black text. There’s the “High/low PPO2” message

Maybe everyone should dive their rebreather in manual mode rather than relying on the solenoid.

This is not an alarm and won't help a heavily task loaded diver who is momentarily distracted from the screen at the wrong time. Luckily the new Shearwater handset does have a haptic alarm.

To your second point, sure, or maybe everyone should dive an ECCR rather than concentrating on remembering to push a button to stay alive. I don't think there's a straightforward answer, but wasn't there recently an MCCR fatality likely due to failure to manually maintain PO2?

 

[PfcAJ]

This is not an alarm and won't help a heavily task loaded diver who is momentarily distracted from the screen at the wrong time. Luckily the new Shearwater handset does have a haptic alarm.

To your second point, sure, or maybe everyone should dive an ECCR rather than concentrating on remembering to push a button to stay alive. I don't think there's a straightforward answer, but wasn't there recently an MCCR fatality likely due to failure to manually maintain PO2?

There aren’t many alarms that will pull you out of all situations. I recall vibrating mouthpieces, blinking lights in your face, haptic devices on computers. Same same, not different. In the right circumstances, people can (and do) ignore all those things.

 

[jadairiii]

Every time I see a thread debating which system is "safer", I immediately think of Arthur's quote from Hitchhikers Guide to the Galaxy:

"Ah, this is obviously some strange use of the word safe that I wasn't previously aware of.”​

 

[Underwater Tourist]

You need to come to Florida. .

I saw no reason for going to FL over MX before (besides getting experience in high flow caves) but now with all the great advertisement you guys do, I don't want to go at all

 

[gmerick]

Dive plan - 70 minutes 100 ft, 30 minutes overhead.
O/C setup - Back mount independent doubles, 2 side slung cylinders. All are HP117's with EAN32.
CCR setup - JJ-CCR with 2 slung HP117's with EAN32.
Subsurface planner:
Time to surface @planned 70 minutes is 60 minutes
O/C gas usage of 2/3 available.
CCR bailout gas usage at mid-dive is 2/3 of available.

Is the dive "safer" on O/C or CCR?