First Rebreather Questions

[davehicks]

I’ve a Petrel 2 and a Nerd 2. I’d definitely be wary of diving without something in my face as it isn’t just for alerts, it is for constant monitoring.

Let’s face it, a haptic alert is like being slapped around the face with a fish for not monitoring your system. (Cue Monty Python fish slapping dance)

There are Huds and Nerds. The Nerd is a face computer. A traditional Hud is a few Led lights, and falls into the fish face slapping category you outline just like haptics. Zero difference.

 

[flymolo]

There are Huds and Nerds. The Nerd is a face computer. A traditional Hud is a few Led lights, and falls into the fish face slapping category you outline just like haptics. Zero difference.

How did you come to that conclusion?

 

[davehicks]

How did you come to that conclusion?

I'm confused about how you didn't come to the same conclusion. Please explain!

 

[flymolo]

I'm confused about how you didn't come to the same conclusion. Please explain!

the hud and handset don't fall into the same category. there was a lot of discussion about that just a few years ago after at least one fatality. hopefully you're not an instructor because i think it's a dangerous thing to teach new rebreather divers otherwise

 

[piranhaman00]

I’m

the hud and handset don't fall into the same category. there was a lot of discussion about that just a few years ago after at least one fatality. hopefully you're not an instructor because i think it's a dangerous thing to teach new rebreather divers otherwise

Im for sure going with the HUD.

My issue is still on the DSV/BOV. I am now reading the thread on the 'Gag Straps' and am leaning more toward a BOV and gag.

 

[flymolo]

I’m


Im for sure going with the HUD.

My issue is still on the DSV/BOV. I am now reading the thread on the 'Gag Straps' and am leaning more toward a BOV and gag.

i use a bov and always have, to me it would feel like i was sacrificing some safety margin switching to a dsv. i heard from one person who had to bail to a necklace reg from a dsv during a co2 hit, said they almost drowned doing it. that was enough for me to feel confident in my decision. I also dive with a long hose clipped off to my right chest d-ring so i have another way to access bottom gas if i had to bailout because of a caustic or something

 

[davehicks]

the hud and handset don't fall into the same category. there was a lot of discussion about that just a few years ago after at least one fatality. hopefully you're not an instructor because i think it's a dangerous thing to teach new rebreather divers otherwise

That's not an answer or explanation as to why a haptic alert is less useful than a red led on a Hud. Same function, different mechanism. Please educate us if there is a good rationale.

Answering with a put-down is just poor etiquette.

 

[mr_v]

Get a HUD. Haptic feedback is good, but your buddies will not notice it. However, they will notice your HUD status when you fail to adjust your PPO2.

If you have $, get two HUDs (one as a backup) or a NERD and a HUD as a backup.

 

[flymolo]

That's not an answer or explanation as to why a haptic alert is less useful than a red led on a Hud. Same function, different mechanism. Please educate us if there is a good rationale.

Answering with a put-down is just poor etiquette.

it would take too long to rehash the entire argument from two years back and i doubt you'd listen anyways so i'm not going to bother. I really doubt that any new or prospective rebreather diver would arrive at the conclusion that not having a hud is somehow as safe, or safer than having one. I suspect the only ones who arrive there do so because they are misled by instructors who tell them it's fine.

 

[Whitrzac]

i use a bov and always have, to me it would feel like i was sacrificing some safety margin switching to a dsv. i heard from one person who had to bail to a necklace reg from a dsv during a co2 hit, said they almost drowned doing it. that was enough for me to feel confident in my decision. I also dive with a long hose clipped off to my right chest d-ring so i have another way to access bottom gas if i had to bailout because of a caustic or something

I had the exact opposite experience.
When I got a co2 hit at 300ft deep in a cave my brain rejected the bov as a safe source of gas. I had to deploy a hose from one of my sm tanks.

I switched to a dsv/necklace afterwards.


Ether one is a suitable option, as long as there's a proper oc reg near your mouth at all times.