Scuba tank explosion - man loses hand

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Petunia do you know if it was 6531 or 6061 type? I am not sure how age relates to that, i.e. when they stopped making the old type though.

No I don't but I know a dive shop owner convinced enough they will be requiring mandatory retirement of Aluminum tanks to put in a big order for new tanks to replace some of their own rentals.

I am not comfortable with too much speculating.
 
Hydros every year? Wouldn't that induce metal fatigue early. I know VPs are yearly.

I doubt it. Tanks are designed to be filled to test pressure many many times (thousands of times) without being fatigued.
 
You Aussie's are saying how regulated it is in your area. If that is so, havn't they outlawed the 6351 alloy tanks already?

We won't touch them. Local shop tossed all his 6351 tanks from rental and pool just for safety.
 
You Aussie's are saying how regulated it is in your area. If that is so, havn't they outlawed the 6351 alloy tanks already?

Not sure.. though some shops won't fill them. Actually there is not a huge amount of actual law surrounding scuba diving in Australia. The only one in my state is that everyone must have a dive flag when diving. There are Australian standards, but they are not legally enforceable I believe. Annual hydrostatic testing comes under that (as do other things like dive medicals and so on).
 
Correct me if I am wrong here. One post said the cylinder was in test. If they were doing a hydro shouldn't it be in a protective vault so to speak? I am familiar with 3 places that will do a hydro and they all use some sort of protective devices when doing a hydro. Yes I am actually asking you :D.. I wonder if there is a standard for that here vs there. Any thoughts?

Here's the equipment and the procedure: Hydrostatic

Richard
 
Not sure.. though some shops won't fill them. Actually there is not a huge amount of actual law surrounding scuba diving in Australia. The only one in my state is that everyone must have a dive flag when diving. There are Australian standards, but they are not legally enforceable I believe. Annual hydrostatic testing comes under that (as do other things like dive medicals and so on).


Sas ... annual hydro is LAW ... one of the few things that is law for diving
 
Sas ... annual hydro is LAW ... one of the few things that is law for diving

Ah in NSW a previous standard relating to hydros has been called into law (but the revised version of this standard has not yet so that is not law currently), you are correct. I don't think it is in Victoria and not sure about other states.
 
One approach that works pretty well and is reasonably cost effective, but not always practical in some dive shops is to have the fill whips on one side of a block wall...

IF you remember to pour concrete down into the cinder blocks.

Cinder blocks alone with not contain a scuba cylinder explosion, they will just contribute to the schrapnel.
 
Just a sad update. He has now also lost his foot. They tried to save it but could not. Tragic to lose his right hand and right foot.

The tank being filled was one of the shop's own rental tanks, was within the valid time frame for it's last test and was an Aluminum alloy. Dive shops are still waiting the fallout from the investigation. Many are voluntarily "retiring" older Aluminum Alloy rental tanks...
 

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