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500psi is acceptable if you really get into the risk assessment and gear abilities at lower pressure. PSI (Professional Scuba Inspectors) is the US nationally recognized & scuba industry wide experts on tank inspections, safety, and the like. They're guidelines suggest as long as the tank...

The drop isn't going to set a catalyst to have it pass a buddy check but then fail at depth. You'll notice something is wrong when you set up gear, if it checks out fine, you'll be good to dive. There aren't really any parts that will shift greatly and break with a fall. All moving parts are...

I have a Transpac XT at work that's a couple generations older and it has a pouch you can slide the plate into and line it up with the grommet holes. Has to be Dive Rite style plate though. Not sure on current gens.

That's pretty much all a general SEABAG is. The only thing that could be consistent is Emergency Action Plan if all sites are in the same local area." Everything else will be site dependent. The BAG is essential just do a buddy check and grab your gear before you walk across the parking lot or...

Looks like you got at least a centimeter or 2 before the seam weld. Take some sewing scissors and trim some fluff very conservatively. Then take a lighter to singe the left over. It'll melt and "disappear". If you go straight with the lighter and not trim, you'll have a hard mushroom of material...

I'm going to give a different answer; I think we should address the vertigo rather than ignore it. That signifies an imbalance of pressure between your middle ear fluids. Yes you can do a lot to prevent going inverted in a dry suit, but it would be better to get rid of the problem than risk it...

If the tank is very very filthy then yes you can get rust powder through the filter. But the tank would have to be very far gone. The more rust, the possibility that the rust will powder up real fine. 2400psi pushing that fine powder through the filter can cause it to bypass into the 1st stage...

Nope, not a good dive destination. Plus no one dives after September, "too cold". Summertime it's either fossil diving the river or boat diving ocean at one of a short number of sites. Mostly weather cancels trips. Most of us go to Florida or North Carolina. Entirety of my recreational...

Nope. My backup is more pristine than my primary because I only function test it or use it for surf entries on a rare occasion. All the wear and tear parts are replaced at annual so there's technically no difference. Technically if you were to never move say an adjustment knob on the backup...

Color can help, but in the end it doesn't really matter. You'll donate what you'll donate or the OOA diver will grab what they grab. If they're calm you'll donate. If they're not they'll probably grab the primary either way. For octo users it color can definitely help guide a calm diver to help...

Answers below in blue, but essentially try it out before looking for a new BC. I think you'll be able to fit under the lift capacity. My questions are: 1) Can I just carry the weight using weight belt if it exceeds the weight pocket capacity? Yes if you're still under the total BC lift...

You're going to start an ascent to altitude before reaching 16 hours. Subtract the drive time and call that your SI. None of us can tell you you're going to get bent or not, neither will DAN. They could advise you better than us. The No-Fly time is not a hard number or a law of science. It's a...

Yes but air will be thin as you hike higher, so your body will strain either way. Fun variable to throw in. I think though you should be fine, plenty of time to off gas.

The real question is where is your starting altitude for the climb and when will you arrive there? If you drive up 1000ft or more to the base to sleep right after the dive you will be pushing a limit. If you end the dives at 4pm then arrive at the mountain base at 4am you'll be pushing the...

Those only make it easier to connect. Disconnecting is the exact same difficulty and process as with a normal inflator hose. You screw those onto a normal LP hose for a 2nd stage. XS scuba also makes those versions as standalone inflator hoses rather than adapters.

Blast from the past; nice to know my dumb phone pictures still looks good 4 years later. Yeah Sherwood did move the tank strap up on the Ventura. Stability issues with the original, like I mentioned above were a major problem once you left the water. I think most mfg's have gone away with...

Both take training and a diving partner to make it safe. Short term, freediving will take more work and practice VS scuba, to become a good and comfortable diver. Freediving has more risk for newly trained divers and relies heavily on a strong buddy system. Scuba diving for newly trained divers...

Mysteriosos M-Tech lineare another good alternative. They are a neoprene fleece blend, where as Lavacore is a non-neoprene polyester fleece. I personally think Mysteriosos work better at keeping you warm. They wick way more the water away from your skin where as the Lavacore doesn't even come...

Thanks everyone, that's great clarification.

I was skimming through the Robert Stewart accident/incident posting and am not familiar with rebreathers configs. Is it not standard practice to have a separate buoyancy bladder? Do some users configure to rely on the loop alone for buoyancy with no redundancy? There were some speculation...