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I am intending to first get familiar with doubles, then take a Fundies class, then next year iantd Cavern and then start the trimix path to normoxic. then maybe intro to cave after that. I am specifically intending to do the cavern first to get familiar with overhead environment (the deco...

That Mark Powell tech intro book seems to be pretty good, just got it and reading right now. I also have the deco for divers book to read next and then some cave diving basics and history books after that which an cave instructor recommended. Some 2000 pages at least and will order more after...

the OP could very easily advance to technical diving by all means if his health and physical condition is good enough to handle the additional stress of deco diving and the mental stress associated with the overhead diving in general (whether being "soft" (deco) or "hard" (physical ceiling)...

another thing is the "cheap and fast" route the OP asked for... it is not possible in technical diving, at least if you want to do it safely and well. you basically need to forget about the money and time, just spend everything you are able to so that you can get the best training and experience...

Excellent that you are experienced with bp/w! are you diving singles or doubles, if singles you can upgrade to doubles and if you already have doubles and proper hose configuration it might be best to take a intro to tech course this year or a Fundies style course with tech pass, then when...

I think one needs to be really interested and enthusiastic about tech diving first and then after doing it for many years it might be a possibility to become an instructor as well. There is no way you can teach stuff you are not interested in in the first place. So the thing is, do you want to...

for me it has helped to have a specific time during a day when I will just listen to classical music and will let the grief come out in a controlled manner so that I can process it in manageable amounts at a time and I will not crush under it. To me it sounds like that you are not yet out of...

I don't have any 2kg powder fire extinguishers at hand but I have a 6kg one here (the most standard size and type used here) . I would think twice before putting 2000psi into that one :shocked: if the guy on the video is using a CO2 model then the tank could very well hold the 2000psi...

Surplus airforce 02 bottles were also used in the early days of scuba. I am not familiar with US fire extinguishers but if its a similar abc powder extinguisher they sell here (a 1kg or 2kg model perhaps?) it will definitely explode if pumped to over 120 bars. Another thing which worries me...

I would love to see that guy to pump his diy scuba system to 2000psi like he mentioned in the video! Hope he will do another video of that blast soon, it should be entertaining or at least educating even if someone gets hurt :popcorn:

the main problem with the pretty much all DIY scuba systems (apart from being very unreliable designs) is that the tank pressure is always very low and thus the capacity is pretty minimal compared to any normal factory made scuba system. the propane tanks for example are capable of somewhat...

did someone else read that caption on the valve drill image??? this is new to me that if one cannot reach the valves during a valve drill it is advisable to loosen the waist belt and possibly even remove the crotch strap so that the valves can be reached :rofl3: (though I understand how it can...

here the shipping companies don't transport tanks which are under pressure so they are normally shipped with zero pressure but the valve already installed. Doubles may be shipped without the valve on depending on where you buy them from. VIP is not required here by law and no one does that...

Scuba divers are limited by ascend rates and at those depths also the deco ceiling so they are not able to bring to victim to the surface quickly. It would need a long chain of scuba divers at different depths to be able to pass the freediver forward and the last bringing him to the surface...

I made a furnace out of a steel tank which did not pass hydro. Just cut it open with angle grinder and used the round bottom part for the furnace project and cut a hole to the side for air blower. one can burn coal in it to melt metal, for example lead for making scuba weights. Very useful :) I...

scuba tank bottom part re-purposed as furnace for melting metal

that would surely be the Adrenaline Rush they are looking for! that would be OxTox Roulette! :bounce: what a nice game to play on vacation!

but there has to be something why they are doing that. The only reason I can imagine would be that they WANT to descend upright and want the tanks to be horizontal at 90° angle to the body which would necessitate that long webbing piece. Why the upright position is necessary for them, I don't...

I watched the video again... is it normal to mount stage/deco tanks like that in some situations, the neck bolt snap attaching to the end of a long piece of webbing hanging around? is it quicker to descend that way or something? the other divers seem to use it as well. a bounce dive setup of a...

or at least make them pay for a OW refresher course before going back water with them :popcorn: