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This is true but States don't decide if you /aren't a charter. Although some states do co-license charters in various ways. Out here in Washington if you run a commercial fishing charter the USCG has authority over your crew and vessel and the Department of Fish and Wildlife has authority over...

Crusty needs ultrasonic bath, new burst disks too. And peel off the 2400psi stickers. Lastly double check the threads aren't out of round with a DIN reg. 300bar is, relatively speaking, out of favor.

You could do 90/70. It's like extra anti deep stop. I doubt there is any human testing of this kind of approach so best of luck with it :D

Correct they are looking for anything "professional" - not just camera equipment. Because in part people like those wedding photographers don't have any MX work permits.

Step one: How much gas does it take to get you and your stressed OOA buddy from the bottom to your next breathable gas source? (deco gas or the surface depending on what you you're carrying) Step two: How much gas do you (unstressed) need for the planned bottom time and depth? Add those volumes...

Is it not going to trial now? Sorry I feel behind on all this news but your summaries have been A+

The hydro and vis are to ensure that the tank is safe to be pressurized. Whether the gas is breathable or not is irrelevant. It's not safe to fill right now. Find out why the shop failed the vis and report back to us.

That's one possibility. The other is the dive shop are idiots and rejecting a perfectly good tank because "reasons". Of course there's also the chance that the tank is actually on the fence with a questionable pit or something and there's a legit difference of opinion between 2 qualified...

Same I don't really have a "rebuild" schedule. Some years I dive a lot and some years less. So I overhaul stuff when it gets crusty or leaks not on a calendar cycle. It's only hot here for a few months out of the year so things like flappers and cristolube don't age that fast just sitting in the...

Yes I know that. I'm pushing the OP to explain what issue is supposedly going on that recently requalified tank can't be (re)filled. Sounds like the dive shop is just arm waving but perhaps its 6351 aluminum and they have a "no tanks over X years policy"?

Right hand = scooter Left hand = reel and light Compass mounted on the scooter. Buddy runs duplicate compass (side-by-side) to help negate inevitable errors. If you need to juggle slip the goodman of the light onto your right hand thumb. Electricity and magnets inherently conflict. Moving the...

Why did it fail vis? How did it past hydro without passing vis? The vis is explicitly part of the hydro procedure.

The surface is definitely a danger zone on any CCR. I dont know why you'd skip a gag strap there. You do have to be mindful of hypoxic gases, but at least if your ADV did accidentally fire and drop your ppO2 or you switched to BOV mode with a hypoxic gas your loop is much more likely to stay in...

I feel like hp80s should be reserved for people 5'6" (168cm) or shorter. If your 5'3" they work pretty well, past 5'6" not so not so much. LP80s are taller, not as compact but comparable weightwise, and nice tanks for a huge range of folks. Slightly less heavy than hp100s in the same basic...

The itty bit of soap in your mask is kinda nothing compared to the lack of any real wastewater treatment when you go ashore and wash the dishes at your condo, take a shower, or flush the toilet. At least in the vast majority of tropical destinations...

In theory it would be at 70F (which is 21C to the rest of the world) That's the "room temperature" used in the regulations here. At the time this cylinder was made it was marketed as "mid pressure" cause 170ish bar cylinders existed ("LP") and 240 bar cylinders existed "HP". And 188 bar was...

I want to know who needs basically no lead in a drysuit, hp100s are barely negative (-2lbs total for both plus -2 for the crossbar and ali plate combined = maybe -4lbs total) when empty so *something* is offsetting the inherent buoyancy of the OP's drysuit. 4lbs seems minimal. Are you diving in...

Rob's shearwater profile doesn't support hypoxia at all. Acute (cerebral/ type 2) DCI is really the only plausible explanation and it affected both of them in the first few minutes after surfacing. The "deco stop" was so short it may not have been acute nor even had any type 1 symptoms at that...

Sure so have I. But at a Carribean resort destination you can have DMs that shrug their shoulders and allow "whatever" to DMs who flip out that you want to assemble your own BC. Some places only take you out for a one tank dive and having twice as much gas as every other tourist is going to...

Clearly you weren't around when the Exxon Valdez ran aground (1989). There is still oil in/on the beaches and the herring harvest has been crap for 35 years. The impacts of Deep Water Horizon's blowout (2010) are also still measurable today in marine life. The effects may not be obvious, but...