Wise Spoken!! I totally agree with Kent Manos Manoli Kent Lind wrote: > To follow up on what Jim is saying, > > You guys who are planning to ditch your big weight belt while wearing a > drysuit.� Are you REALLY positive you can lose your weight belt at say 250 ft > in open water and not end up in a ballistic missile ascent?� Are you positive > you can dump gas fast enough from your drysuit to bring a buoyant ascent under > control?� Can you burp your suit through the neck with the gloves and hood you > are wearing?� You better be sure you can.� I though Wrolf had a story on his > site about some such horror. > > Johnny Mack obviously knows nothing about cold water drysuit diving.� Iff you > follow his advice and you wear a weight belt heavy enough to be neutral while > wearing a drysuit, heavy thinsulite or fleece, hood, and dry gloves, you will > end up with a weight belt in the 20-30 lb range minimum.� Which of course > means you will need to dive with your wings massively inflated to balance out > your tanks, manifold, light, and backplate.� In fact you are guaranteed to be > overweighted if you start out a technical dive with a weight belt heavy enough > to make you neutrally buoyant while only wearing the drysuit. > > Now when you are having your personal cluster at 250 ft and you go to pull > your rig off because you know you can.� Are you positive that you won't > mistakenly grab the wrong buckle and drop your 25 lbs of weights instead? > > In fact, are you positive that there is no way you can accidently lose your > weight belt under any circumstances?� I have personally witnessed at least > half a dozen divers either lose their weight belts at depth or nearly lose > their weight belts.� It's not a fun thing to deal with in a drysuit. > > For doubles I dive with drysuit, steel tanks, v-weight and no weight belt at > all.� I can take my rig off underwater without major problem.� With the > drysuit hose attached the rig is not going anywhere.� I would not want to try > it in mid-water but on the bottom it's not a big problem. > > Am I worried about ditchable weight?� Not at all.� I can always ditch my light > but would never plan to. > > I am positive that my wings provide way more than enough inflation to deal > with a flooded drysuit.� How do I know this for certain?� Because my wings > have enough lift to float my entire rig on the surface and I know for certain > that no matter how much I flood my drysuit I will still be positively buoyant > with the thinsulate and trapped air.� I don't care how much you flood your > drysuit, you won't end up negatively buoyant because water is neutrally > buoyant in water. > > Likewise, I am positive that I can get enough inflation out of my drysuit to > accommodate a wing failure at depth.� How do I know this?� Because I have > tested it.� It's a simple thing to dump your wings completely empty at depth > with full tanks and see if you can get enough lift out of your drysuit to stay > neutral.� Everyone should try this just to see.� If you need to do this for > real it helps to tighten down the exaust valve on your suit and then deflate > manually.� You can get more gas in your suit that way. > > If I have such an unbelievable cluster that I lose both my wing and my drysuit > I can still get some serious lift out of my jet fins.� I can swim my doubles > rig up with full tanks and empty wings and drysuit.� I know because I tested > that too just out of curiosity. > > On top of that I carry 2 lift bags.� Either one of which can be used for > emergency backup buoyancy. > > By my count, that gives me five independent sources of buoyancy when I'm > wearing my doubles.� On the other hand, I have absolutely zero ways to add > weight in mid-water if I happened to find myself positively buoyant through > accidental or intentional loss of a heavy weight belt. > > Kent Lind > Juneau, Alaska > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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