Mustard Dave
Contributor
Check out the weight belt the panicked diver is wearing. He's got enough lead around his waist to keep a commercial diver in a drysuit firmly planted on the bottom.
Also, listen to the audio of that regulator. No reason to service that puppy, it obviously breathes effortlessly.
Most of them appear to have loads of lead on them. I'm not familiar with those weight belts - what are those sticks? About half a kilo / one pound each? Some look like they have about 20 of the things strapped to them!