tech diving

The other day while I was doing a Google search for an out-of-print book, "Oxygen Hacker's Companion by Vance Harlow", I came across this list of suggested books for your personal library. I found this blog article about suggested books for your personal library fascinating and thought I would...

Brand new in box, never used - asking for $850.00 Please note that this unit DOES NOT come with the heart rate monitor (hence the empty top slot in the box). Serious buyer please DM, I am often on trips, so I do apologize in advance if I don't reply quickly. FREE shipping to Con. U.S. after...

Hello. Selling a “like new” Zeagle Ranger Tech BCD with a 65lb bladder. I only dove with this once as it was a gift from a girlfriend and was the wrong size. The 65lb bladder is $450+. It can be fit on the ranger, Zeagle metal backplates, and ranger ltd. The BCD is size large (LG). It is in...

Hi guys, I’ve seen the twin tank conversion kit for the Apeks black Ice BCD. Doesn’t look terribly secure compared to other doubles set up. Has anyone here gone down this track? Would love to know any experience on this or if there is a way to hack this into a more comfortable harness and...

Today we launch Underwater Italy, a new video channel dedicated to deep diving in the Mediterranean sea. The YouTube channel is a container through which me and my buddy Claudio Valerio narrate about our dives in the twilight zone, a depth interval, where coral forests, sponge gardens and...

Hey Everyone! I recently did my TDI Intro to Tech in the Gilis and I'm planning to visit Thailand in Dec '22 to do a few tech courses - TDI AN+Helitrox, followed by TDI Trimix. I believe it will take me 8-10 days to work through both of these courses, so am planning for a 12-14 day trip. The...

I have been playing with developing bailout plans for CCR dives. The approach I was trained on is to calculate gas required for safe ascent to surface taking into account all deco obligations from the worst possible point of the dive (typically the end of the bottom part of the dive). I would...

I'm sure this has been talked about many times before, but I would really like to compile some information before I go out and drop 2-3k on a drysuit. I am currently looking for a drysuit of moderate price but I really don't know anything about them. I am someone who is big and tall ( 350 -...

I think I have this in the correct place. I have a Dive Rite O2 Deco Regulator with a Mini-SPG in PSI with a Luxfer Aluminum 40cf Cylinder for sale. I purchased the set from Dive Gear Express in late 2017. The tank is still in hydro and has about 2800 lbs of O2 currently in it. I last used...

This is purely for fun... So much diving gear, especially that branded to be technical diving gear, is dark or black. I now read the word sometimes as technicool (similar to the tactical --> tacticool boom over the past two decades with military gear). Why not bring some color to your next reef...

The "Economics" of being a tech diving instructor posted in InDepth magazine: The Economics of Being a Tech Diving Instructor ...and part 2 about recreational (non-tech) instructors: The Economics of Being a Recreational Scuba Diving Instructor

TRADING HP100s Manifolded doubles, hydro/vis 2020. Genesis manifold, rebuilt 2020. Looking for a pair of LP108s manifolded doubles or with L/R plugged valves. Will sell, but the cash value will be higher. Location: Greater Atlanta area. I do travel to cave country monthly. I will...

For Sale: Used Two gas dive computer, Aladin Tec 2G. $250 OBO, make me an offer! § Nitrox Computer (21-100%) § 2-Separate Nitrox Mix Capabilities § User-Selectable MOD When 02 Mix Is Set § Gauge Mode with Stopwatch Function and Average Depth Indicator § Decompression Dive Planner §...

Hello divers, I think a lot about my future diving and how to proceed into the level I want to and would like to brainstorm a bit my ideas with you to have another insight, opinions and maybe recommendations :-) First, bit about my diving history, skills and interest: I did my OWD + basic...

Hi all, I'm from a start-up developing bio-inspired materials tech for the diving and water-sports industry. I'm doing some background research into rebreathers and was hoping to get the community's opinion on: - Why you initially switched to rebreather diving? ( e.g..... for the experience...

Hi All, I am beginning my Tech Diving in the next 6 months, I am currently facing the choice of Side-mount vs Back-mount. I would like to get some basic training before my TDI AN&DP to familiarise myself with my chosen setup and as such am leaning towards Side-mount as its a common course...

Hello! I am fairly new to diving and was hoping you all with far more experience and knowledge would be able to help me out. I have a few questions. One is, which company has better quality gear and warranty should anything happen when it comes to BP/W, OMS or Halcyon Dive Systems? I have been...

Thinking about taking a couple/few months off next year to get formal technical training. Since I lived in the Riviera Maya before, I was thinking Cozumel or Playa or Tulum, but would be open to other locations in the area if it is the right choice. My idea is to take the full range of tech...

Hi everybody! My goal is to be able to calculate NDLs. I'm currently using Buhlmann's M-values, and I can use the "Schreiner equation" to calculate the tissue pressures at any point in a dive. I cannot figure out how to calculate NDLs for the compartments at points in a dive. I'm using Deco...

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