marchand
Contributor
If a shop has 4000psi bottles it is cheaper for them to bank at 4000psi instead of 3500psi because they have to start up the compressor half as often. It is turning the compressor on that really eats up power.
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What size would that be??
If a shop has 4000psi bottles it is cheaper for them to bank at 4000psi instead of 3500psi because they have to start up the compressor half as often. It is turning the compressor on that really eats up power.
I agree. As much as anything shops are starting to want to see an insured business behind the sticker. That puts the certified inspector / owner on thin ice. Its a combiination of revenue protection, the layers, insurance requirements and personal safety concerns.If you're doing your own VIP, I'm surprised anybody fills your tanks. You might not like it, but the inspections are as much for their protection as yours.
Terry
That's a fairly uncommon neck thread, your hydro facility is probably keeping that adaptor just for you (unless you are the hydro facility).35 CF with 1.250-12 UNF neck threads from a UDS-1.
If you're doing your own VIP, I'm surprised anybody fills your tanks. You might not like it, but the inspections are as much for their protection as yours.
Terry
I first saw the "No Al prior to 90" rule on a Gulf-Diving live-a-board a few years ago. But they were using volunteer temporary tank fillers so I can see the simple rule in that case. Plus they provided replacement tanks for free for any effected divers so there was no question about motives.
Shops should have a much more stable environment and sufficient opportunity to screen and train employees that such simple but biased rules should be unnecessary. Perhaps the shop could add an additional sticker to record their verification that a pre-'90 tank is not the 6351 material and can be filled by that shop. It is just silly to be denying fills of older Catalina tanks unless the reading ability of the tank filler is in question.
Why the assumption that because he is doing his own visuals, that they are somehow suspect, or that he must therefore be opposed to the whole notion of annual inspections?
That's a fairly uncommon neck thread, your hydro facility is probably keeping that adaptor just for you (unless you are the hydro facility).
If a shop has 4000psi bottles it is cheaper for them to bank at 4000psi instead of 3500psi because they have to start up the compressor half as often. It is turning the compressor on that really eats up power.