How do I do a 50m bounce?

[I_R_DIVER]

Hallo fellow dive folk I have decided If done enough 40m dives I want to do a 50m dive with a bottom time of say 3-4 mins. How should I go about doing this I have not done any tech training yet so deco I dont know.

HMMM where can I start my search to do this???????

ps build up dives are my friends

 

[Jafo123]

Get trained first. If you don't have the first clue how to plan this dive your not ready.

 

[karstdvr]

Deep bounce dives are very dangerous,if done incorrectly it can cause a type 2 DCS-ask Ted Cole from the WKPP.

When going deep and entering into decompression,technically you are in an overhead environment. Training and redundancy becomes imperative at this point.

 

[medic001918]

HMMM where can I start my search to do this???????

With your local respected technical instructor is a good place to start. That way you can get trained to properly conduct dives to that depth.

Bounce dives are not the best idea...so either get training, or don't do them.

Shane

 

[Tienuts]

I say give it hell. We need more darwin candidates.

 

[I_R_DIVER]

OK cool I have spoken to a couple of people who do these kind of dives. I was under the impression they are not that complicated. They seemed pretty easy and strait foreword. I knew there is a lot more to them than meets the eye (ear) but obviously more than I bargained for. And this Info came from very good OW instructors. That is why I decided to ask the friendly smart folk on the web thanks guys. I will go get trained properly.

 

[Jim Lapenta]

Problem is alot of OW instructors have no clue when it comes to technical diving. The ones that do will tell you what you've been told here. I'm working on OW instructor now, I have a small tech background and have been to 155 ft for 18 minutes on 21/26 trimix on a wooden ship that went down in 1870 and looks so good that if you brought it up it would float. IMO much safer than doing a bounce dive to that depth. It's this experience and training that seems to make my initial ow instructors eyes glaze over when I start talking about END's, MOD's, and to some extent EAD's, other than standard nitrox mixes, when all of these things are considered. Along with his seeing no use for BPW's, long hose, and Hogarthian configurations in general. Get the training and enjoy the dpeth if that's what you want to do and there's something to see down there like a wreck or whatever. Doing it just to go deep with no real purpose, except during training which is a purpose, for other than bragging rights is dumb.

 

[DA Aquamaster]

My experience with deep diving OW instructors has been similar. The ones that do it, do it for bragging rights and/or do it badly with no real regard to proper planning, configuration or redundancy.

Diving to 150-160 ft is indeed pretty straight forward - as long as everything goes well. It's when things do not go as planned or when you encounter a failure that proper training, planning, and configuration mean the difference between living and dying.

At a minimum, to do it safely and in a manner that would garner any degree of respect from a properly tained techncial diver, you need training in Advanced Nitrox and Deco Procedures and be properly configured with a BP/wing, redundant doubles, a long hose primary, a deco bottle and the other gear you need to do it properly.

Doing it with a normal OW configuration and without proper training is the scuba equivalent of Russian Roulette.

 

[Teamcasa]

Bouncing to 50m (or more) is like driving very fast, say +200kph. Many do it for the thrill and bragging rights. The majority survive to tell the tale. Some don’t.

Please get the training first. You never know, what if you start to loose control, will you even know it before it injures or even kills you?

 

[NorthWoodsDiver]

I often dive to 140-150 ft and treat it as an all air deco dive where I dont just bolt to the surface, I hang at pre determined depths usually starting at half the max depth and every 10ft after that. I have however found out that at about 140ft the narcosis affect is very recognizable and on one occasion I was blown otta my mind with such narrow vision that my buddy was next to me and even passed in front of me without me knowing it. That dive was done wet, late fall, and in poor viz which is a bad recipe all together.

Before there was trimix, divers would dive to 250 ft or more all the time on air and just pay for it with narcosis and a huge deco obligation.