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Like medicines, beyond the expiry date the effectiveness diminishes. It will still work, but less effective. Therefore using sorb beyond expiry date creates an unknown risk; you don't know how much less effective the sorb is. It could be 10% or 80%, or any number between or beyond. you mileage...

Hey there diamond queen.

I had been interested in caves since I certified for OW. But that was just a mild interest. Then I met some GUE guys while doing a stint in Asia. I did Fundies and met a buddy who also was coming to FL. When we got here, we needed to see the caves.....................it is a drug.

One of my best was in Telford, another good one was one just putzing around in Ginnie with my buddy.... we scootered and swam for hours on the breathers. There is not one best dive, there are a few bad ones that stand out against a great number of good ones.

I sold my Eclipse. When I put it on my AL80 doubles, it bent the bands and turned the twins V-shaped. The drag was unbearable.

and that is the crux.... your point 1. Not everyone understands, or refuses to acknowledge those risks. Secondly, even if the diver does; most of the times the family does not. This often leads to arguments that 'this should not have been allowed to happen, who is to blame for letting little...

Vplanner and the internet :blinking:

I can finally learn to cave dive now.... :D Looking forward to it Jill.

Hence, we all fail eventually. Spot on!

We all fail eventually. Failure is part of live and part of learning. Better to accustom yourself with that in a (safe/confined) training environment. Experiencing a specific failure for the first time in a real life environment only adds to confusion, fear and panic. Not quantities you want to...

My take is that at the point you loose all BG and you have a single pony with 30cft of gas, one can safely assume this will have an effect on mindset and SAC. It would be prudent to get to shallow depths as soon and safely as possible. It gives a little extra room for additional errors. Now...

To OP. Neptune visits, bail to Pony; do the fastest safe ascend to safety stop and hang for a few minutes, maybe add a few more than normally. That should do it. The rest here (MOD, fills etc) is somewhat irrelevant in this hypothetical scenario.

We all are bound to die....hopefully doing something we love intensely.:D

Usually this comes down to physical size, weight, price and buoyancy characteristics.

Not normally no. People do die in caves (not as much as people make us believe), but their bodies are usually recovered within hours.

Yes they are, never contradicted that. They do not apply to fill pressures used in recreational SCUBA. That is my point.

I look forward to your search details around OSHA and DOT regulations around filling of recreational SCUBA tanks. There was a change around the filling of 6351-T6 Alloy tanks. As we know there have been some issues with that. DOT 3AL cylinders manufactured of 6351-T6 aluminum alloy. Suitable...

Do you have a reference to the OSHA/DOT/CGA rules where it relates and states recreational SCUBA tanks and usage specifically? CGA is an association of industry manufacturers and sets standards, not laws. A quick search of Occupational Safety and Health Administration - Home did not yield any...

I don't think there is a law for or against filling scuba tanks to a specific pressure. The pressure ratings on tanks are manufacturer guaranteed tested pressures. They have to do that in order to comply with DOT regulation. Filling and using scuba tanks is unregulated by law and self-regulated...

What algorithm is the Galileo running? My guess is Buhlman.