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Devil gas Manifold vs. independent doubles DIR wars What's next? This is what we get in a certificate based hobby. If only people would consider context and focus on attitude and procedures more than on nuts and bolts...

If I were you, I'd try the historical diving forums.

Great idea. I have access to one...

Strange. Are these tank valves of the old V shape that you need to seal with isolation tape and not with an o-ring?

Some possible reasons: 1. The LDS does not offer the type of tank/tanks that you prefer. You might want them smaller, larger, longer, shorter, lighter, heavier, concave bottom, convex bottom, doubles, sidemounted, steel etc. If you dive with a basic Al80 backmounted, then the LDS will serve you...

Alternate air sources are not needed at 15 feet. It is safer to just resurface. One true risk remains though: it is harder to rescue an unconscious diver who does not wear a BCD. This small risk is not much different from the risk people take getting drunk in a bar. The righteous will disagree...

I have mostly used a moisture wicking base layer for comfort but some times, when I feel lazy, and the water is a bit warmer, I have used just a t-shirt and underpants. In very cold water and for extended exposure I'd replace the moisture wicking base layer with merino wool. Washing just the...

Diving without an octo and without a bcd in warm +21C water. Depth varied between 1 and 6 meters or 3 and 18 feet.

A trilaminate drysuit will not keep you warm. You need to wear warm clothes (including warm socks) underneath. Pick your favorite. There may be many options to choose from at a diveshop but you could also just use plain old-fashion wool and test if it works for you. There will be some...

True, because the pressure inside the hardhat dropped to 1 ATM because of the failure. The external pressure then forced the diver into the hardhat. The end result was kinda messy. I've even heard tales of divers exiting through the air hose. Nope. Cannot happen. The drysuit is not connected to...

Your breathing capacity would be maybe 30 % but not zero. This is widely experimentally proven in squeeze training/competitions in caving where people actually breathe (laborously) without being able to expand their chest. Enough to survive, enough to cause panic in the uninitiated.

So, it will be tight to the skin, but it will not crush you (because you are not compressible, as you said). The suit will be VERY tight, but it will only become a second skin.

A drysuit AND warm clothing beneath it. Gloves and woollen socks, too. Get a warm hood. Some of you skin (face) could get exposed though, so perhaps you want an "icehood" (search for one online, e.g. the H2 icehood).

In this video the backpressure valve of the helmet has failed (and the pump too). In this case the pressure inside the helmet is 1 ATM and outside maybe 6 ATM. And guess what happens. Now, your drysuit (helmet) will not have a hose connected to the surface unless you are a commercial diver.

As the ambient pressure increases (and hence the pressure inside the suit - they are equal because the suit is not a pressure vessel but made of flexible cloth) the air inside the suit gets compressed. This allows the suit fabric to come closer to your skin. You may wear some undergarments...

I do ask you to think. If you do wear a drysuit, then the exhaust valve controlling you buoyancy is on your left hand. This means your depth gauge (which you constantly need to see) must be on your right arm. Hence, the light must be on the left.

I do not remember which company I relied on. Pick one though, that guarantees small teams. Please familiarize yourself with the drysuit. It is a beast to controll. Ten hours with it will make you "experience" so much better.

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Sounds like marriage, ‘speak now or forever hold your peace' - since 1549

That's interesting! Empty of stuff?