SPG or not

[34109411]

Why would you abort a perfectly dive after losing the ability to monitor the pressure in your main tank if you've got a full pony bottle?

You feel the breathing getting more difficult on the primary, then you switch to the pony and end your dive.

Easy peasy

cause i only dive solo i should have specified. i am really careful for that matter. The idea to wait for a difficult breathing is not good for me.

be safe

Be safe

 

[USdiver1]

You feel the breathing getting more difficult on the primary, then you

... pull your J valve, and enjoy your trip to the surface with plenty of air.

 

[Belzelbub]

When they do fail, they fail the wrong because they stick, indicating you have more gas than you do. AI fails in a safe manner.

If you don't trust the air integration, then why use it? Stick to an SPG.

Exactly. I’ve had an SPG fail before. It did exactly that. I only noticed as it was a type of dive I’ve done many times before, and had a pretty good grasp on what I should be seeing at that point. The SPG was telling me I had much more gas than I really had.

I do bring a spare SPG with me. It stays in a bag on the boat and hasn’t actually gotten wet since I started diving AI.

 

[LI-er]

cause i only dive solo i should have specified. i am really careful for that matter. The idea to wait for a difficult breathing is not good for me.

be safe

Be safe

I dive solo as well. If I lost my ability to read tank pressure (Unlikely as I dive a transmitter, 2 receivers and a mini analog spg), I'd have no issue with the safety aspects of switching to my pony when the breathing gets difficult. It's not a complicated maneuver, and if you can't trust your pony bottle as a backup then why bother carrying it in the first place?

 

[Hungcyon]

Yes SPG

 

[34109411]

I dive solo as well. If I lost my ability to read tank pressure (Unlikely as I dive a transmitter, 2 receivers and a mini analog spg), I'd have no issue with the safety aspects of switching to my pony when the breathing gets difficult. It's not a complicated maneuver, and if you can't trust your pony bottle as a backup then why bother carrying it in the first place?

I dive solo as well. If I lost my ability to read tank pressure (Unlikely as I dive a transmitter, 2 receivers and a mini analog spg), I'd have no issue with the safety aspects of switching to my pony when the breathing gets difficult. It's not a complicated maneuver, and if you can't trust your pony bottle as a backup then why bother carrying it in the first place?

you don't understand what i said. too complicated sorry english is not my first language.

 

[OMyMyOHellYes]

You can just get two Swifts (your computer IS a Shearwater, right?) and a Peregrine AI or a NERD 2 or a Perdix 2 for the other wrist and never worry about even having an SPG in the boat bag.