The curious case of AI. Do you use a back up SPG while using AI?
- Thread starter amado_sarhan
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PatW
Contributor
I use both. Sometimes the air integration fails. My little SPG always works. It adds some to the kit. Having an SPG has saved a fair number of dives. It has paid for itself many times over.
drl
Contributor
I use AI and have a backup small spg attached to a hip d-ring (short hose), because low-tech is robust.
OTF
Coney Island Whitefish Biologist
When I use AI I always have a backup SPG. I have had frequent dead batteries in AI transmitters. Accidentally leave it pressurized for a day or two = dead battery = dammit no AI.
On doubles I run the transmitter and SPG on different posts.
On doubles I run the transmitter and SPG on different posts.
KenE
Contributor
I run both, I run the spg on a shorter hose than the inflator right next to inflator. It is out of the way, streamlined, but available if I need it. I have had battery failures on the AI in the past and the spg saved the dive. It takes a second to configure it at the beginning of the dive day so I don't mind leaving it there. My pony is using a spg but will be upgraded to AI only. I really don't like spg hoses clipped off to waist d-rings or looped around to chest.
Just curious, was it a swift or the older model? I had that happen with a swift a few weeks ago...
I've never heard of it happening on the older model, only on the Swift.
DreadnoughtNH
Contributor
I fall into the 'belt and suspenders' camp and use AI and a backup SPG on my rec rig. I consider myself a new diver after 7 years and ~500 dives, and though I've never had trouble with my AI, I have had my SPG 'fail' on 2 occasions (leaking at the gauge). This thread is giving me food for thought; great post.
Still Kicking
Contributor
SPG all the way.
I prefer not to rely on wireless technology underwater but I will grant it has become more reliable.
I am reluctant to invest the money in a primary and backup AI system.
After 30 years, I have a pretty good handle on gas consumption and verifying my SPG is second nature.
No judgment on anyone else's personal preferences.
I prefer not to rely on wireless technology underwater but I will grant it has become more reliable.
I am reluctant to invest the money in a primary and backup AI system.
After 30 years, I have a pretty good handle on gas consumption and verifying my SPG is second nature.
No judgment on anyone else's personal preferences.
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