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To eliminate the helium penalty and reduce deco. Same thing Rob and Sotis supposedly did.

Except that the computer log showed the loop never dropped into hypoxic levels. It was a widely held belief that he lost consciousness due to hypoxia until the computer data was released. Now the reason for loss of consciousness is unknown, but leans a little towards a DCS hit.

I am sure that you will get a bunch of different opinions on this subject and there are a few factors to consider. What kind of dive experience do you have and what is your time table? Was the sidemount/cavern you first foray into "technical" diving? 1. Taking class in sidemount, from a...

Sorry, but again depends on the boat. You will find that if the shop runs daily morning and afternoon charters there is usually a time crunch to get back to dock by a certain time so they can unload, clean, and load up the afternoon group--this lends itself to one long deco dive. Some boats only...

Have you tried cutting your line under water? You don't need to get underneath the line to cut it, you can saw the top of the line or knick at fairly easily from the sides and work your way down the strands fairly quickly. Why dont you use the #24 nylon line found on spools? That plus the...

Contact the charter operation. Some charters will do shorter dives at multiple sites, others will pick one site and stay there for two dives. Many boats run charters to specific wreck sites and will do two dives at the one site. The boat is usually at the site for about 3 hours (2x 45 min dives...

I'm pretty sure 'stack' is referring to the 'stack' of money you set on fire when you go CCR.

The people that were conversing in this thread have years (some decades) of CCR experience. The terminology and framework that was being discussed has been around for a very long time. So when a diver tells you he is 'going to go burn off the rest of his scrubber' do you believe he will be...

Never used or packed soda lime is sorb, sorb that has been packed is henceforth "scrubber" "I dumped my scrubber" vs "I dumped the sorb out of my scrubber". They both mean exactly the same thing. "I have more scrubber to use" vs "I have more sorb to use". Scrubber implies you have more hours...

No, scrubber is the correct terminology. As in reuse "the" current scrubber canister, how many hours do you have on "the" scrubber. Sorb is the loose and unpacked soda lime. Once it is packed into a rebreather it becomes "the scrubber". "Re-using sorb" is how you have the re-packing issue...

That is the Min Deco procedure. You may be thinking of the Min Gas calculation which was changed a couple of years ago. Updated GUE Minimum Gas Method | Wet Rocks Diving Diver Usage = The current calculation is .75 cuft/min x 2 divers = 1.5 cuft/min Ascent rate = 3m/min to first gas switch...

I would try out out the 2.7kg in soft weight in the pouch you have and see how it goes. Technically the weight position does matter, but it depends on the diver and circumstances how much it matters. As long as it is close you will see divers either naturally adjust and compensate or not notice...

I think you are taking the (very legitimate) question a little too harshly. Jgttrey's explantion was excellent and I think the question was more just to see if your practice had been actively endorsed or taught somewhere or if it was developed organically by yourself. So it sounds like this was...

Welcome! A couple of other threads that you might find informative/helpful. Signed up for Fundamentals My descent into and out of madness: GUE Fundamentals, or Instruction vs Evaluation GUE Fundies Class Review (Long Post) I'm a fan of doing fundies as soon as possible; even if you don't...

Can you provide a couple of examples? I assume you mostly mean instances where the isolator was closed and a diver breathed the whole tank down. I could argue that these were diver error and complacency—not checking tank pressure even one time 5-10+ min into a dive. As a friendly debate, I’ll...

Tank factors is a very simple chart. Once you have it, you have gas calculations on every tank imaginable and the ability to quickly compare tank volumes between yourself and your buddy. The factors are rounded .5 and the hp tanks line up with their LP size equivalent. AL80 = 2.5 HP100/LP85 = 3...

Really? Tank factors simplify everything down into quick 2nd grade math calculations. Two digit multiplication is always going to be faster and easier than division plus multiplication. You want to do the proportions method fine, but to say tank factors complicate things rather than simplify is...

I think people on this board know I am a firm believer in fundamentals and fundamental knowledge, but tank markings gets covered in OW, but rarely is it fully enforced/emphasized. It takes reinforcement to truly master the concept and that reinforcement usually doesn't come until AOW, Nitrox...

40lb wing for 85s and stage is perfect. If you aren't going to be diving in a drysuit (yet) make sure you can swim the whole rig up from depth with full tanks and also that you can maintain a 3 min safety stop at 10ft with near empty tanks. A lot of good deals on used scuba gear in Florida...

It wasn't shown up close, but this is essentially correct. It is a technique that allows you to recover the spool in water without the risk of pulling up a lot of slack line and getting entangled in it. It is situationally dependent, but best course of action would be to put air and shoot the...