Why no weight pockets with doubles?

[tbone1004]

If a weight can be released and dropped it's ditchable what does rec or tech have to do with it?

just the way it is used in the industry. It's the intention of release, not the ability to release. Either way, I can't stand weight pockets, and if I have to bring lead with me, I wear a weight belt.

 

[PBcatfish]

...I really do not understand assumptions like "doubles are for tech diving", "diving doubles is tricky and requires special kills", or "doubles require an additional bladder"......

I share your frustration with people who do not seem to understand that there are situations in which diving a way that is different from their standard can be appropriate.

That aside, I think that the bias for double bladder BCs comes from two places. First, there is the redundancy in the case that one bladder fails, you still have the second to work with. The second reason relates to doubles with isolation valves. In the case that you breathe down one tank & not the other, that leaves the rig unbalanced. Separate right & left bladders allow you to correct this. For me, a 6-9 pound imbalance over a 1 foot span is not enough to concern myself with. I can rotate my body a few degrees to compensate for that. I guess that some people prefer to fine tune the difference. I don't see it as necessary for me, but I do understand the perspective.

 

[PBcatfish]

Maybe for you more skill is required to dive dry. I don't see where it does. I've been diving dry suits since 1970something.

It was my understanding that in the US, you were supposed to get a dry suit cert before using one. That may be wrong. I haven't checked up on it. I do know that my local dive shops offer dry suit training.

A dry suit does have the added danger/hassle of getting upside down with your feet full of air. that does require an extra skill to get you out of that situation.

I also do understand that for people who dive dry often, it becomes second nature & does not add significant cognitive workload to the diver once you are good at it.

 

[rongoodman]

You might need a card to rent one from some shops, other than that I don't know of any real need of one. That isn't to say some instruction can't be helpful.

 

[seeker242]

No in other words people that make blanket statements like "heavy steel double should only be dived with dry suits" are usually F'd up.

And people who think wearing a drysuit is somehow inappropriate, are usually F'd up, because that's just plain stupid.

 

[NAM001]

That's just so untrue.........

WHY???

 

[NAM001]

And people who think wearing a drysuit is somehow inappropriate, are usually F'd up, because that's just plain stupid.

I have to agree. I did doubles in a wet suit blew a wing with tanks at 90% cave fill. NEVER AGAIN DOUBLES WITH OUT A DRY SUIT.

 

[Dark Wolf]

I have to agree. I did doubles in a wet suit blew a wing with tanks at 90% cave fill. NEVER AGAIN DOUBLES WITH OUT A DRY SUIT.

Or at least a dual bladder wing.

DW

 

[AfterDark]

And people who think wearing a drysuit is somehow inappropriate, are usually F'd up, because that's just plain stupid.

Making statements like that the only way to safely dive heavy steel doubles is with a dry suit is IMO inappropriate.

 

[AfterDark]

It was my understanding that in the US, you were supposed to get a dry suit cert before using one. That may be wrong. I haven't checked up on it. I do know that my local dive shops offer dry suit training.

A dry suit does have the added danger/hassle of getting upside down with your feet full of air. that does require an extra skill to get you out of that situation.

I also do understand that for people who dive dry often, it becomes second nature & does not add significant cognitive workload to the diver once you are good at it.

I'm grandfathered in as a dry suit diver. As I posted there were no dry suit classes in the 1970's when I started. The dry suit came with an operators manual, that and doing is how I learned to dive a dry suit. It was so complicated I did my 1st ice dive the 3rd time I used the dry suit. Also been diving doubles since around the same time without one minute of tech training ever, just a knowledge of diving physics and common sense.

I'm not trying to blow my own horn here, I'm just an average guy that made it thru high school with average intelligence if I could figure this out on my own by reading and doing most anyone can. Some people like to make diving seem more complex than it is for their own reasons.