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I have to make a decision on when to visit Grand Cayman for 7-10 days with the family. Because of kids' schedules, I'm stuck with the beginning of July or the beginning of October. My wife favors October because it gives her more time to get passports for the kids, while I'm leaning toward...

John: I've been absent from the board from a while, but yours is the first post I read when I logged on yesterday. Your hypothetical is actually a bit more complicated than you probably intended. First, Cozumel is in Mexico. Mexico's tort law is positively paleolithic compared to U.S...

There's no "residual alcohol time" table issued by any certification agency. Regardless of data concerning how long it takes to eliminate alcohol, each individual has varying susceptibility to impairment. Some people can down a keg and may *appear* operate quite well. Others can take a sip of...

If you're first down, I don't think anything changes in the first scenario. You need to hook the wreck, so back up you go. Same goes for the second. If you're last down, I think the first scenario response is identical--go back up and tell the captain he's off the wreck. The other teams...

IMHO, you simply cannot SAFELY do the DT-Cathedral run on an 80. According to my dive plan, a 120 is marginal if your consumption rate is high. With an 80, you don't have any reserve whatsoever unless you just plan a bounce dive. You were smart to avoid it the first run.

EXACTLY the way we did it. And going from Cathedral to DT? That's sort of...unusual in my experience. DT's exit is deeper than the Cathedral and upcurrent from it, iirc. If you did Cathedral and then DT from the shallowest entrances, you were sawtoothing on the dive and kicking against the...

I'm assuming that the dive boat hooked the wreck, and then it's hook was dislodged at different points. Scenario 1: The hook was dislodged before or during descent. Query: Did the pre-dive briefing include a discussion of procedures in the event the boat becomes unhooked? Reasoning and...

So you mean: why did Suunto choose to display the O2 percentage instead of MOD? I don't know, other than MOD at 1.2 is different that MOD at 1.6, and Suunto didn't want to get preachy about which which number to use. The Vyper platform has been around a long time. Back years ago, 1.6 was...

Rob's quite right. After three years, it's buried for good in Saguaro and it will take an act of a particularly beneficent deity to find it. Under normal conditions, Saguaro is extremely low visibility--like a foot. The best visibilty I've seen is 10 - 15 feet, but that was once. Below 10...

I will probably be at the lake on Thursday, but I've committed to helping with an IDC. I may be able to slip in a dive over at VP, though. I'm generally flexible during the week.

Here are some possible questions your club president might ask. Substitute Trimix or Heliox or Helitrox for "nitrox". What is nitrox? What benefit does it provide to divers? How does nitrox diving differ from air diving? What risks does nitrox pose to divers? Would the average club...

You're probably thinking of the Scubateers.

There's a thread kicking around the Going Pro forum called something like "the 20 skills broken down." I don't recall how many skills are spelled out in that thread, but it might be a good starting point.

Ghetto cave fill, dude. :D

Oh my... The techniques are really no different--plan your dive, dive your plan, breathe in, breathe out, monitor depth, time, gas pressure, and buoyancy control on both descent and ascent--but going deeper entails additional risks and you need to monitor those items more closely than you do...

It's in case you get pulled over by the scuba police and have to put your hands on your head during the in-water strip search. :D

It's actually identical to the concept of a half life, only in reverse. :D

In your body, inert gas such as nitrogen moves from areas of higher pressure to areas lower pressure at a certain rate. A "half time" is the amount of time required for bodily tissues to go from equilibrium to 50% saturated for a given change in pressure. For example, on the surface, our...

You should never allow yourself to be too busy to dive. When I was in law school, there were a few days I blew off class in favor of spending the day mountain biking in Sedona. Trust me, your contracts professor will still be there droning on about consideration and promissory estoppel when...

I received an email today that Scuba Magic (Tempe) is closing down. Unfortunate.