Most common open-circuit equipment malfunctions leading to problems?

[Bob DBF]

True, but all dives on that wreck were (and still are I believe) done on a single 88-90 cu ft tank (!)

So they don't allow pony bottles?


Bob

 

[The Chairman]

PEBRAF failures are the most common.

• Failure to plan
• Failure to execute
• Failure to maintain gear
• Failure to obtain the requisite training
• Failure to improvise
• Failure to identify problem
• Failure to identify solution
  
• Failure to execute
• Failure to abort.

I could go on and on with PEBRAF failures, but you probably get the gist.

Spoiler

Problem Exists Between Regulator and Fins

 

[Fibonacci]

So they don't allow pony bottles?

When I dived with Alan Power they didn't offer twinsets or even ponies unless you brought along your own (at great expense on an international flight... with the valve removed).

A single 90 cu ft tank is still standard, but it seems they will now set up independent twins (at additional expense) on request. No mention of ponies.

What sort of tanks do your guests dive with?
We use Aluminium 90 cu ft tanks with K and DIN valves. If you wish to dive with twin tanks, they must be set up independently and divers must bring their own bands and BCD's.​

FAQs - Allan Power Dive Tours, Vanuatu

 

[Fibonacci]

Here's a Zeagle first stage total diaphragm failure (8:42) on a solo spearfishing dive at 180 feet (55m)
At least he kept cool, had a 13 cu ft pony and deployed a SMB at depth (using his pony to inflate it!)

 

[ScoobaChef]

When I dived with Alan Power they didn't offer twinsets or even ponies unless you brought along your own (at great expense on an international flight... with the valve removed).

A single 90 cu ft tank is still standard, but it seems they will now set up independent twins (at additional expense) on request. No mention of ponies.

What sort of tanks do your guests dive with?
We use Aluminium 90 cu ft tanks with K and DIN valves. If you wish to dive with twin tanks, they must be set up independently and divers must bring their own bands and BCD's.​

FAQs - Allan Power Dive Tours, Vanuatu

A group of us dived with Coral Quays last year and they supplied manifolded twins and stages for everyone.

 

[chillyinCanada]

Here's a Zeagle first stage total diaphragm failure (8:42) on a solo spearfishing dive at 180 feet (55m)
At least he kept cool, had a 13 cu ft pony and deployed a SMB at depth (using his pony to inflate it!)

Wow.

There's some salty language too!!

The line tangle escaped me though. Was that a separate coincidental incident or is all the line because he lost control of the line on his reel?

Really impressive self rescue.

 

[Blueringocto_73]

That was amazing! Thanks for posting.

 

[Roger Hobden]

Nice video !

 

[dberry]

If I recall correctly, that video is of a former SB member and was posted here a year or two ago (but not by him). There was a fairly lengthy discussion about it. He is an avid spear fisher and often shared his videos, especially of dives that went sideways. For example:
Depth: 95 ft, In Deco, 500 psi, No Buddy

 

[Rollin Bonz]

Here's a Zeagle first stage total diaphragm failure (8:42) on a solo spearfishing dive at 180 feet (55m)
At least he kept cool, had a 13 cu ft pony and deployed a SMB at depth (using his pony to inflate it!)

Narrowly escapes imminent death due to catastrophic equipment failure at nearly 200 feet, (switches to pony, deploys smb, AND doesn't ditch his speargun) surfaces and... nonchalantly frees fouled prop...