OkByMe
Contributor
- Messages
- 599
- Reaction score
- 202
- # of dives
- 500 - 999
I don't know why this is so confusing.
The LDS can't do squat to your cylinder other than decide to put a tumble on it to clarify the inspection. If the inspector determines that the cylinder is a fail on VIS they can mark it any way they want... Crayon, marker, tag on the valve, slap a fail VIS sticker on it... And write up the reason, giving it to you when you pick it up and pay for the inspection, But they can't permanently obliterate the DOT required shoulder markings or damage the cylinder in any way.
On the other-hand, if your cylinder is in a DOT certified Hyro testing facility; They will VIS the cylinder, and if it does pass (in their opinion), go on to test it. At that point if the cylinder fails, they may do a retest just to make sure, but a fail gets your cylinder permanently rendered inoperable. The don't ask, they don't try to justify, they don't make excuses, it is done. They are the fail-safe in the system mandating a specific cylinders testing requirement and have authority to do it. The hyro is done by machine set up with the proper test data for that cylinder and then they push a button and record the readings. No ambiguity, no guess work, no opinions or second guessing.
They will XXX the shoulder markings, and destroy it some way. It it is usually to ream the threads in the neck or put it in a V-vise and drill a large (or more) holes in flank, or do what they did to mine... cut it in half with a power band saw. They said that was the easiest for them on most all cylinder sizes and gives the customer back a couple planters.
The mistake you can make with the LDS is to give them permission to damage the cylinder if it fails the VIS in their opinion and that is all the VIS is, an opinion. If you take your cylinders to an LDS for vis... you make it clear that the cylinder is not to be damaged or altered in any way if the inspector fails it. Make it clear that you want to be in a position to get a second opinion and take it straight to the hydro shop.
Tell them them the LDS failed it on VIS and you want them to VIS and Hydro. Pay the money. If the cylinder does not make their VIS they won't hyro, and you have saved yourself some grief. - but they will not destroy or damage your cylinder, [unless it is aluminum and fails a proper current eddy test for that material] since the hydro fail is the last word. Now that is 2 people who says your "tank sucks", Now you can run around trying to find someone else to resurrect it and spend more money, your call.
If it does make their VIS, but fails the Hydro, you have saved yourself some grief and come away with some big honk'in paperweights. If it does pass their VIS and hydro, make sure you get the testing report, take it back to the LDS and give them some grief. As an aside... I used to have 3 US Divers cylinders (DOT E6498) I bought in the 70's... Eddy tested, hydro'ed and re-certified 3AL. One failed the eddy and the eddy re-test twice in one event and they cut it in half. I have the survivors eddy tested - pay the money, at each hrydro...
The LDS can't do squat to your cylinder other than decide to put a tumble on it to clarify the inspection. If the inspector determines that the cylinder is a fail on VIS they can mark it any way they want... Crayon, marker, tag on the valve, slap a fail VIS sticker on it... And write up the reason, giving it to you when you pick it up and pay for the inspection, But they can't permanently obliterate the DOT required shoulder markings or damage the cylinder in any way.
On the other-hand, if your cylinder is in a DOT certified Hyro testing facility; They will VIS the cylinder, and if it does pass (in their opinion), go on to test it. At that point if the cylinder fails, they may do a retest just to make sure, but a fail gets your cylinder permanently rendered inoperable. The don't ask, they don't try to justify, they don't make excuses, it is done. They are the fail-safe in the system mandating a specific cylinders testing requirement and have authority to do it. The hyro is done by machine set up with the proper test data for that cylinder and then they push a button and record the readings. No ambiguity, no guess work, no opinions or second guessing.
They will XXX the shoulder markings, and destroy it some way. It it is usually to ream the threads in the neck or put it in a V-vise and drill a large (or more) holes in flank, or do what they did to mine... cut it in half with a power band saw. They said that was the easiest for them on most all cylinder sizes and gives the customer back a couple planters.
The mistake you can make with the LDS is to give them permission to damage the cylinder if it fails the VIS in their opinion and that is all the VIS is, an opinion. If you take your cylinders to an LDS for vis... you make it clear that the cylinder is not to be damaged or altered in any way if the inspector fails it. Make it clear that you want to be in a position to get a second opinion and take it straight to the hydro shop.
Tell them them the LDS failed it on VIS and you want them to VIS and Hydro. Pay the money. If the cylinder does not make their VIS they won't hyro, and you have saved yourself some grief. - but they will not destroy or damage your cylinder, [unless it is aluminum and fails a proper current eddy test for that material] since the hydro fail is the last word. Now that is 2 people who says your "tank sucks", Now you can run around trying to find someone else to resurrect it and spend more money, your call.
If it does make their VIS, but fails the Hydro, you have saved yourself some grief and come away with some big honk'in paperweights. If it does pass their VIS and hydro, make sure you get the testing report, take it back to the LDS and give them some grief. As an aside... I used to have 3 US Divers cylinders (DOT E6498) I bought in the 70's... Eddy tested, hydro'ed and re-certified 3AL. One failed the eddy and the eddy re-test twice in one event and they cut it in half. I have the survivors eddy tested - pay the money, at each hrydro...