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It depends on the environment--diving off a boat or a shore dive with a lot of surge, do it before hitting the water. Cave, quarry, or easy walk in shore dive-do it in the water. There are less distractions when you are all in water about to start the dive than on the surface--either people are...

The only person being political here is you. COVID-19, Corona, Wuhan, Chinese Wuhan.....all are perfectly acceptable and accurate descriptions. 'Wuhan Virus' was used dozens if not hundreds of times by just about every major media and political figure. Right wing dog whistle? Please, more like...

Officially, a manufacturer will only list a regulator at 40% nitrox, however in this day and age the process and procedures used to manufacture the normal regulator are the same as the "O2 reg". Buy any new regulator today that doesn't have titanium components and you can put it on an O2 bottle...

Depends on a couple of factors. 1. Willingness to pay just a little bit extra for the helitrox cert vs the normal Adv. Nitrox 2. Depends on how quickly the time table is to upgrade to trimix. Trimix might be 100% in the a divers future, but there can be a lot of diving in between the two...

You are in luck. Youtube my friend. You need a wrench and the proper size hex key. Just be mindful of keeping proper orientation--make sure the side you put the spg on will in back be on your left when everything is hooked up to the tank. Hell, if I am using a LDS for airfills and maybe some...

I don't understand the Joe Rogan hate. The guy asks some clarification questions or questions to keep topic on point, but for the most part he lets guests speak freely. Joe doesn't claim to be an intellectual. I don't even think he would accept that term if you tried to give it to him. He's a...

Rocky Horror requires a jump to get to it so you won't have to worry. Great cave for 32% Plenty of gold line, good for a beginner. Flow can be very high, but I believe it has been down for the past several months.

What exactly do you need assembled? If it is just an assembly and not any servicing, all you need is a wrench and an allen key. Plenty of you tube videos.

Apart from some stuff previously mentioned, It means that diving isn't a perfect computer simulation and no one is instantly jumping out of the water just as the clock hits triple zero.

In addition to the above, simpler to blend (none). Higher medical safety--ie can be used to treat medical issues on the surface. Depending on dive profile, 50% provides benefits in reserve gas calculations and/or starting deco sooner 100%-the most efficient deco gas 80% is inbetween these two...

Sometimes you gotta do, what you gotta do to take a class. That said, it is very rare for an instructor not to be able to find a former student or just another friend to tag along on a dive and play buddy for a class. Solo academic work is fine, but I have done enough advanced training to make...

This can't possibly be correct! Aren't we supposed to have a fight that nitpicks the most minute detail and lasts for the next 20 pages?

These are actually two slightly different arguments. One is having a certain fundamental skill level before starting a class and the other is doing beginner basic skills in a pool. We already covered that I would consider doing a valve drill in 6 ft of water off of shore, on a platform, or in...

Class always starts with skill/technique demonstration and refinement. There is not much difference between doing this on platforms, in pool, or in shallow beach dive. You may not be able to do ascent training (maybe baby ascents if pool is deeper) but there is nothing wrong with doing basics in...

It would be normoxic trimix (O2>18%, any helium %) and then hypoxic (O2<18%,any helium %). helitrox (advanced recreational trimix in IANTD speak) was designed as a bridge between normal AN/DP classes and an actual trimix class. Give the diver the benefit of getting a little helium without...

I wouldn't look too much into the "AN/DP" name. It has become colloquial to mean 'deep' tech training vs 'cave' tech training or even tech training in general. An example would be 'Have you done AN/DP yet?' aka have you taken training past AOW level. Truth is there is a ton of benefit to...

Marie has stated unequivocally several times that she will never take fundies. Initially, before her position may have been widely known by all, some people would mention taking it and she would be overly dismissive in a variety of ways. Eventually some GUE people, who at this point were well...

To address a couple of posts DS4 is non-swivel/turrent. The DST is swivel and what you would want for sidemount. My recommendation would be the Apeks DST/XTX 50s or Scubapro MK25s with you choice of 2nd stage--I prefer the size G250V or G260, some like the S600s. Halcyon is also an option and...

As others have stated, it can be very instructor specific, but some it depends on your own current experience and the manner the AOW wreck class is being taught. What experience and training have you taken so far? How much is the class? How many days? Is it being combined with any other...

Like 98% sure Faber didn't have galvanized tanks back in 2014--I think Faber came out with their galvanized tanks in 2016. If they are XS scuba from 2013/2014, they are most likely worthingtons. Feel free to post picture of tanks/markings to confirm.