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When you need a knife, you need a knife and shears, line cutter or scissors will just not cut it. Like the time I was first diver in the water from a live-aboard when the captain realized he was getting too close to the pile of rocks we were about to dive and went into reverse before...

When I'm diving tables my objective is to descend at 18m/min to optimize bottom time because that's what the tables are based on but in practice I'm never negative enough to achieve this rate while just sinking in a horizontal position so it's not really a concern. Bad practice, always...

The big problem I have is staying warm. My SAC has dropped over the years to a very low level for the simple reason that my movements are minimal, economical and efficient. The flip side of this is that by not exercising my muscles I feel the cold much more. When I do a dive where I have to...

[/FONT][/SIZE]What is it with US divers and bananas? Still living in the dark ages when superstition was rife? Since most of my diving is in tropical locations it's rare to find a boat that doesn't have bananas available. This food is very low in Saturated Fat, Cholesterol and Sodium. It is...

Depends on the computer. Practically all modern ones have a long battery life and o-rings that you don't want to mess with too frequently. On the other hand I have one DC, a Beuchat Maestro Pro circa 1995 and you never leave the batteries in for the simple reason that battery life in "off" is...

For starters you forgot that this is taking place at 30m so multiply your calculation by 4. The compartment may start with a certain volume but then gets compressed as the ship sinks. Unless of course it's sealed like a submarine - not likely and if it was he wouldn't have had the saturation...

Either this guy has a great SAC or he was in a pretty big airspace. Wouldn't he need about 100000 liters of air to last 48h at 30m while resting before CO2 buildup would become unacceptable?

My wife used to get occasional skin bends when diving to the limits of her circa 1995 computer (Beuchat Maestro Pro). Since she changed to a Suunto Vyper some years back it never again happened. We found we had to set the Maestro to 20% conservative for it to emulate the Vyper.

Depends on the usage. Just reef cruising, probably at least 300 dives. But if you do a lot of wreck penetrations and swim-throughs in tropical waters where the suit is worn more for protection than for thermal isolation probably a lot less. I have one blue and yellow 3mm shorty, 12 years old...

Ditto to Herman. All primary second stages used by my family will free flow when purged while levers are in the "dive" setting. Only my reserves don't free-flow because they're deliberately detuned.

Not branded products but some of these are good value for money. Waterproof Led Diving Flashlights/ Torches for Sale with Cheap Price - DX

$110 to test a reg is a complete rip-off. I could walk into any one of the various LDS where I'm known and they'd either test it for free or lend me a cylinder so that I could test it there and then in the shop and they'd let me use their IP gauge. Even in a tourist location like Bonaire where I...

Without even going into the calculations I really can't imagine my arm staying attached to my body if it tried to tow me in full scuba gear at 25mph. I still remember the pain when a helpful fishing launch tried to give us a tow at 10 knots when we getting pulled away from our dive boat by a...

I don't know where you got that drawing but it's wrong and will confuse people unless they use exactly the quoted mosfet. The IRF3205 is (correctly) an N-channel mosfet so the arrow should point towards the gate and not away.

Not exactly true. Spearguns need regular maintenance and there are times when you have to push the spear into a pneumatic one (to see if the seals are holding pressure along the length of the barrel or to check the loading pressure) or into a banded one (to check for frayed or cracking rubbers)...

That link didn't work for me. Here's another (Google translator works fairly well if you don't speak Portuguese), I assume it's the same incident. G1 - Marido atinge acidentalmente mulher com arpão em Arraial do Cabo, RJ - notícias em Região dos Lagos

You probably didn't even get out of the mouth of the (sheltered?) inlet and into the current. Maybe it's just as well.. ;) I think it's actually quite revealing that a Google search for Chikitu in combination with the words "safe", "diving" or "swimming" turns up practically nothing other than...

You guys have to be a little crazy. The phrase below is reproduced in various travel guides and sites: Playa Chikitu Lying in Washington National Park, Playa Chikutu is beautiful, but, alas, swimming is forbidden due to the enormous waves and the dangers that lurk underwater. You would be swept...

A lot of threads were lost when there was a hard disk crash some years ago. The post I had made referred to the use of a reed switch to control the gate of a MOSFET switch. The reed switch would be mounted against the inside surface of the light housing and operated by a magnet on the outside of...

It really depends where you go. Do you have a destination in mind?