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I dove an AIR2 for years. They are fine. As long as everyone understands who donates what, where is the issue? If I had a good dive with an insta-buddy and liked him and we got along, I would consider that far more important than a quirk of his rig you didn't like. Let's say you get a new...

This is what I was taught 45 years ago. Buoyant ascents were also taught back then, but I was taught this was absolute last choice. In the OP’s scenario, ditching the student’s weight would not have made the situation worse, since she died on the bottom. Her getting bent or an embolism would...

Oh no! I am not recycling a $0.05 part that holds my air supply to my mouth! you might notice this fellow is also flaming the end of his line to permanently lock in his knot. And it too, has no sharp edges…

I usually melt the end of the cable tie after cutting it. It makes sure there are no sharp edges.

I drop my tanks off to be filled at the shop and pick them up a day or two later. I put them on the shop gauge when they come out (before they are paid for). If they are light, I ask them to top them off. You don't have that happen many time for them to realize life is easier if they give me...

Rock is going to be 1.5 to 3.0 density. Lead is ~11.3. I would suggest a a semi dry and lead. Rocks will will make you unstable. A DUI harness will make carrying and wearing lead much more comfortable. If you are looking to get underwater shots, consider gluing a gopro mount to a rock and...

Hi, my 20 year old Scuba Pro Nighthawk is reaching the end of its effective life span and I have been starting to look at my options for a replacement. My shop has offered me a good deal on the Apex Exotec they have in their clearance stock and I wanted to see what people thought of it. I have...

Errr... The density of most rocks is going to be around 2.5-3.0. The effectiveness of a weight when it comes to diving ballast is how dense it is, not how much it weights. Lead has a density of 11.3 versus water's density of 1.0. You can put rocks in your a fanny pouch to make you sink, but...

That and all of his participation has been in the basic forums… asking basic questions…

For starters, their profile indicated not certified. They were asking about an incident that involved a novice diver on a training dive. They have not said anything to indicate they are not a new diver and are asking a fairly basic skills question about weights. Maybe they have a few hundred...

A single error seldom results in a accident. They usually result in a cascade of two or more. This woman had no way to add air to her suit, mistake one. She had an unreasonably large amount of lead, mistake two. She had no way to circumvent mistakes one and two. What should have been a...

Having a weight belt fall off is just the same as forgetting to connect an LP inflator. It is a user error. Saying that ditchable weights are a liability is really saying "I don't want to deal with making sure my gear works reliably". You should never ditch weight at depth, but being able to...

So you would have been fumbling with a DSMB as this woman sank even deeper in the lake? For whatever reason, she was over weighted. The absence of a quick release was a contributing factor to her death. She could have embolized on her way to the surface, but that was never an option since she...

You learn some thing new every day... They all should have some built in mechanism to prevent catastrophic failure. I understand some countries rely on o-ring failures.

They have a burst disk that will rupture if the tank is significantly over filled. They make a god awful noise as the pressure drains. This was a structural failure of the tank. Why it failed is anybody's guess. It may have been steel and corroded or it may been damaged previously and...

When you rent tanks you need to plan ahead. When am I going to go diving next? if you arrive at the beach and conditions are sh*tty, you've still rented the tank. I fill my tanks after diving, so getting them filled for the next dive is never an issue. If I don't know how good conditions...

Some of the tanks laying on the ground look pretty sketchy. The white one on the left appears to have rust where the boot would be. I don't know any thing about Eastern European scuba cylinders, like where they are sourced or what inspection schedule they have. Amazing no one was killed. It...

I bought a set of assorted o-rings and in the field just eyeball it. Do you need the money for food, medication or tank fills? You do know that the dive light or the money will both get left behind when you are off to the great charter boat in the sky. I know that I will eventually not be...

I have not dove Bull point in a long time, but heard that the someone laid line there. I believe the start at below 15'. They may have pulled the line at the end of the season, so I have no idea if it will be there.

I am not proud... What I have done is gone on a shop trip and on the boat they paired me with another diver. The shop usually has fairly competent divers on these trips, and a few newbies that the shop baby sits. On one trip they gave me a competent buddy and we dove together. On another I...