Redundant Bouyancy

[texdiveguy]

Why is it that I've read on some of these threads that dual bladder's are bad and a dry suit is the only thing for double steels?

There are several schools of teaching and thought on this topic....is one right and one wrong...both have strong supporters. It is a persl. choice and what you the diver feels works best for you and your particular situation and you the diver are comfortable with. I persl. don't feel I need a dry suit on to dive steel doubles so long as I have provided appropriate redundant bouyc. found in a redundant wing (dual bladdered or stacked)...course this means I am diving a wet suit. The debate ranks up there with the best of them--lol.

 

[Ghost69]

texdiveguy hit it on the head. dual bladder wings and their effectiveness is a personal opinion. some people do not like dual bladder wings because one bladder could get stuck to another or something to that effect, but basically the failure of one bladder could compromise the other bladder and then your in a difficult situation. you have lost your redundancy. now, if your wearing a dry suit you are still ok. in short willardj, some people think if one bladder fails it could cause the other to fail so don't use dual bladders.

my only point was the water maybe too hot and make the dry suit a sauna and jumping in the water that is 85ish wont cool you off. i was just trying to ask the thread do most people dive two single wings or open dual bladder. i was thinking a 60lb wing and a 45lb single wing stacked was the way to go but wanted a consensus.

 

[Ghost69]

thanks texdiveguy. i think steve r got a little side tracked. i was thinking diving the keys in july when air temp is 90+ and water temp is 80 something would be much nicer in a wetsuit versus a dry suit. doable in a dry suit but more enjoyable in a wet suit. besides, i always have to dive dry back home and going wet would be a nice plus.

its the little things and with a wet suit i do not have to hook up the dive rite unrinator~! take off your dry suit without unhooking reminds one how nice wet suits can be! ahhh, the simple things in life.

so i was looking forward to diving double 95's in a wet suit.

 

[texdiveguy]

thanks texdiveguy. i think steve r got a little side tracked. i was thinking diving the keys in july when air temp is 90+ and water temp is 80 something would be much nicer in a wetsuit versus a dry suit. doable in a dry suit but more enjoyable in a wet suit. besides, i always have to dive dry back home and going wet would be a nice plus.

its the little things and with a wet suit i do not have to hook up the dive rite unrinator~! take off your dry suit without unhooking reminds one how nice wet suits can be! ahhh, the simple things in life.

so i was looking forward to diving double 95's in a wet suit.

Ghost69 I think you will do fine....my wings are 65 and 40 for wet suit doubles diving in warmer conditions were a dry suit is not ness..
Have a good time in your course, should be exciting and rewarding during and once finished.
What agency and instructor are you taking the class through,,,and which level of training, I think you said 'mix' but I maybe wrong there.

 

[willardj]

thanks texdiveguy. i think steve r got a little side tracked. i was thinking diving the keys in july when air temp is 90+ and water temp is 80 something would be much nicer in a wetsuit versus a dry suit. doable in a dry suit but more enjoyable in a wet suit. besides, i always have to dive dry back home and going wet would be a nice plus.

its the little things and with a wet suit i do not have to hook up the dive rite unrinator~! take off your dry suit without unhooking reminds one how nice wet suits can be! ahhh, the simple things in life.

so i was looking forward to diving double 95's in a wet suit.

I dive 95's myself in a 3mm and 7mm. I use a classic 59# and a rec 51# They have worked fine in the past.

 

[Doubles]

I have never understood the argument that "if one wing failed, the other will probably fail too".

I'd like to hear some scenarios that actually have happened not some "once upon a time" fairytale about potential failures...

-s

 

[Ghost69]

Probably heading down summer of 2008 and diving with Horizon Divers in Key Largo to do my trimix course. I can choose either DSAT or IANTD but most likely will stick with DSAT only because all my tec classes, blending classes, and prior recreational certs up to instructor are PADI.

I may get dual certified in DSAT and IANTD if it does not cost much more only to see how both courses teach. That way I can evaluate the advantages and disadvantages to both agencies since the Instructor will be the same. I am not one to think there is one absolute perfect agency. Good and bad to all of them and I still believe the instructor is the most important piece to the training equation.

Have you ever dove with Horizon Divers? If so, any feedback would be appreciated. Meet with Dan the owner at Dema and he seemed pretty straight forward and accommodating. Plus posts on the Deco Stop seemed positive. Usually is someone is bad the message board is lit up.

I never dove with Horizon or in the Keys for that matter. I mainly want to go somewhere warm for trimix versus the 39 degree bottom temps in the Great Lakes. I did my Deep Tec (equiv to acc deco procedures) in Ohio back in 2001 and have not done much technical diving since mainly due to the cold water. I still get out a couple of times a year but just not that fun putting on a dry suit in 85 degree air temps in the summer with heavy undergarments, then diving in 39 degree water with 30-40 foot vis where the wreck is covered with zebra mussels. I am thinking Florida would just be so much nicer. I can not imagine how nice it would be doing gas switches in reef gloves versus 5mm or dry gloves.

Oh, and thanks to the both of you for your opinion on diving two single bladder wings versus one dual bladder wing. That is what I was after and I appreciate the both of your opinions.

 

[Doubles]

Kinda makes the point that this is a rather second-rate and un-neccessary convoluted way of making something as simple as back-up buoyancy a reality doesn't it?

I think it must be too obvious that a dry suit affords better exposure protection for longer immersions without the nonsense of additional wings, inflators, hoses........

It's like having one piece of gear performing two functions very well..................oh wait, that's exactly what it is

I wonder who the Ghosts' mix instructor is up here and if he was even asked what he thought about this.

This is why your on ignore - but unfortunately I still have to read your posts in the emails

It's not second-rate and drysuits do not perform bouyancy control anywhere as well as a bladder. Why don't you try venting that dry suit inverted with all of your tanks slung some time and let me know how that works for you.

oh wait your on ignore - and I am removing the email notification so I don't have to ready such ridiculous statements.

Dry suits were designed to be used as thermal protection. They do not react as fast as a bladder in inflation or deflation. So if you want to take your chances with something that is second rate to a device that was purpose built - knock yourself out.

-s

 

[Ghost69]

Gillness, Your ignoring Steve R and not me, correct?

I have heard those stories too about if one bladder fails the other may too but to be honest with you I am not sure how likely that case would be. I am not sure if I agree with that ideology of a failing bladder. I take it you have never had a problem with your dual bladder wings?

I have to admit this, but I did just order an Apeks 60lb wing with dual bladders so I acutally have the dual bladder plus a 60lb single OMS wing and a 45lb single OMS wing. I can choose which ever set up I want now.

Diving in Ohio I was using the 60lb wing with my doubles, the 45lb wing with the harness and a single 80 for recrational diving (harness allows me to use my can light in Lake Erie). I bought the dual bladders just to have if I choose to do so.

Oh, in short, I am thinking one is okay with either a dual bladder wing or two single wings. Either appears fine, at least to me. Thanks guys.

 

[Steve R]

This is why your on ignore - but unfortunately I still have to read your posts in the emails

Doncha hate it when people quote people on your ignore list and you end up reading it anyway lol.

Frig I hate that.

There should be a way in the software to prevent this.
lol.