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All Confession time... Before I knew any better, I had a Zeagle wing with a pull dump as part of the inflate hose. I rarely used this convolution but it was there anyway. On one drift dive in filthy conditions, the value chose to part-open and stick part-open. As with all things this happened at the same time as a few other CFs some of my making and some not (I won't bore everyone with these). I was on my way down the slippery slope of the incident pit. The effect of my failed pull dump was that my ascent and buoyancy control went to hell. After a short time I worked out what was wrong and switched to my redundant source of buoyancy and sorted out the situation. I guess I am speculating (I should await the facts) as to one possible cause (stroke equipment) of this incident. However, I felt it worth mentioning in the hope that someone else will recognise the failure mode of a pull dump change their kit. Needless to say I now dive Hogarthian with a Dive Rite original wing (pull toggle removed) as a result of the excellent information provided by George and others. David Shimell Project Manager, Sequent Computer Systems Ltd, Weybridge, UK Email: shimell@se*.co* ---------- From: owner-techdiver[SMTP:owner-techdiver@aquanaut.com] Sent: 19 January 1998 08:53 To: John Brett Cc: techdiver@aquanaut.com Subject: Re: 3 missing in WPB Fl / Divers Supply "coverup"! FROM rec.scuba,sat pm John, John, John - SEE THE TAPE - we cut that off. Only a stroke would have the stupid toggles on a pull dump. The bottles trigger it. This device is for releasing gas in a situation where you can not get heads up, but is almost never used, since the bc wil generally release gas from any position if there is too much in it. John Brett wrote: > > <snip> > > I > >know that sometimes a dump valve toggle can get caught in the webbing of your harness if your not >paying > >attention when you suit up. > <snip> > > The first real dive I did with my hog. rig, the toggle got trapped by the stage bottle > - well, at least I tested my redundant buoyancy system :-7 > > The solution I took was to remove the pull-dump's toggle (just left the cord behind). > Obviously, there are other ways of solving it: > Don't have a bottom pull-dump > Have the pull-dump on the RHS of the wing > <others?> > > Anybody got any opinions on these? > > -- > 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'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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