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Introduction Many times I see a thread with a post about an equipment failure and the responses are to take some action that was purportedly learned and drilled in the open water class. Most often, I don’t remember any such drill being taught, and many other posters indicate that they...

Thanks for the review. Another plus of the DGE is that you don't have to get the compass capsule out of the Suunto boot.

If a diver has no known coronary artery disease, does the dive-medicine community have a similar standard to evaluate a diver for fitness? Or does it cease to be a medical question if there is no known CAD?

Thank you for contributing. In the context of diving in Northern California, I can see this, but in the context of diving in warm-water resort waters with a group of divers in calm seas, it seems like overkill. Many, many divers only dive in the latter conditions. As for rescue, I understood...

I too am surprised by this number. I checked a nomogram that I found on the Internet, which comes from the American Heart Assn. (Nomogram based on age, METs, and activity status (sedentary vs active) that provides a percent of age-expected exercise capacity in men.) 13 METS is at the bottom of...

There was an incident mentioned in another thread here on SB to the following effect. The diver surfaces from a dive and collapses on the boat within minutes of surfacing. Classic sign of AGE. His buddies rush him to the hospital, and the ER doctor insists on doing a workup. His buddies explain...

:thumbs_up::thumbs_up::thumbs_up: I had no idea how fast my ascents were until I started using a dive computer. It turns out that 30 fpm is actually quite slow. The computer was a good training device for me.

One book that has not been mentioned yet is The Complete Diver: The History, Science and Practice of Scuba Diving by Alex Brylske. Not as encyclopedic as the title might suggest, but it does touch on a lot of different topics. Brylske brings the skills of a magazine writer and the knowledge and...

The OP has requested advice on which regulator to buy, and after considering the arguments about buying a dive computer first, has decided to pursue the original question of which regulator to buy. Let's keep the thread on track and honor the OP's request.

Well, you're really using your noodle. :D Thanks for the clarification.

That's the topic for a separate thread. First, you have to figure out your budget for a computer. For some, price is no object. For other, price is indeed the object. For an entry-level computer, you can start by looking at the thread I list below, which will mention the Puck as well. The Puck...

Wow. Even the physics were different back then. Nowadays we have tanks that don't compress the air with depth and only have to contend with the pressure of the water column on our chests. I started with J-valves (and no SPG), and yes, you hoped that the rod hadn't gotten pulled inadvertently...

LSD is for going on trips '60s style. An LDS is a local dive shop. :D I think that getting your own computer is more important than getting your own regs.

Shearwater has announced an air/nitrox recreational mode upgrade: ScubaBoard - Scuba Diving Forum - Diving Social Network - Shearwater Announces Nitrox Recreational Mode for Petrel

For sure, you're gonna die! :shocked2:

No one can argue with your feelings, but the fact is that most computers are definitely not in the same price range. Do you want entry-level or do you want something that you can use for deco diving? Most rec computers cannot be used for planned deco diving. If price is no object, the...

Correct. There's a certain rating for air that can be used in a nitrox tank, but I don't recall what it is and so didn't go into it. If the shop says they can't fill your nitrox tank with air, it might simply mean that the air is not hyper-filtered to remove all traces of hydrocarbon that are...

The user manual for the Mares SPG that I just bought states: Why would that be? Do people who use nitrox replace the SPG's HP hose every two years?

I recently purchased a Mares SPG, and the user manual has this warning: I know that once a tank has been filled with nitrox, it shouldn't be filled with air and vice versa (unless cleaned), but I have never heard of not using a pressure gauge with a nitrox-filled tank once the pressure gauge...

Not sure that I understand. Are you using the noodle itself as the hanger (using a string to connect it to a hanging rod in instead of a wire hook)? By entire noodle, you don't mean an entire 4' noodle, do you? You trim the noodle to the shoulder-to-shoulder length of the wetsuit? Does the...