David, We also use Apeks DS4's, based on your recommendation about a year ago. They are great regs, and we now have 6 between us! I can't recall the hoses being routed as you say, and buddy was not using the pull dump. I normally use a DR jnr wing for twins/nitrox, and the Classic for stages+twins/Trimix, whilst buddy uses the Classic for twins/nitrox only (at the moment!). We both don't like the pull dumps, and it's difficult to get the replacement elbows (or any other DR spares for that matter) in HK (and I have had no luck by e-mail/Fax/Phone to the US either!). However, we now have a Halcyon dealer in HK (I think as of last DEMA), and have just bought Halcyon 55lb explorer wings, which should hopefully do us for all our twin tank diving. These, as you know, don't have the pull dumps, so at least we are now eliminating that potential source of trouble. [Incidentally list, if anyone knows of a source of elbows suitable for the DR Jnr wing, I would be grateful to receive it, since I will continue to use this wing for no deco single tank stuff)] Thanks once again for your help. JT -- John Taylor CREDIT | FIRST SUISSE | BOSTON Equity Derivatives and Convertibles Unit * +852 2101 6927 (Office) * +852 2101 7698 (Fax) * +852 9031 6395 (Mobile) * mailto:john.taylor@cs*.co* * mailto:do@sc*.or*.hk* > -----Original Message----- > From: Shimell, David (shimell) [SMTP:shimell@se*.co*] > Sent: Monday, March 06, 2000 6:13 PM > To: Taylor, John; 'techdiver@aquanaut.com' > Subject: RE: Wing deflation problem > > John > > I use a Diverite Original wing, with a truck inner tube liner, the > original > inner bladder cover, then the bladder itself. I have found a very few > times > only at the end of a dive when there is a delay in the wing dumping from > the > convoluted hose. Since this was then end of the dive, there was little gas > remaining in the wing at this point. Not a big problem nor a frequent one. > > Reading your email caused me to think about this. I use the superb Apeks > US4 > first stages and the only problem I have with them was a very minor > complaint > about routing the HP hose. I had the backup hose behind the wing and the > HP > over the wing. This caused the wing to be pushed forward and there being > some difficulty in slotting the wing between the cylinder and the HP hose. > I > have recently changed the way I do this now and am now very happy with it. > Both HP and backup go over the wing and the whole lot sits more > comfortably > and with less stress on the hoses and wing. The wing on the left hand > side > now sits more comfortably against the cylinder neck with no pinching or > tight > angles. I dived it this weekend at Stoney and had about 1 Kg of lift left > and on this occasion had no problem dumping the wing - not a statistically > significant observation since the slow dumping is a very occasional thing. > > Now, it occurred to me that the effect of the HP hose one side and the > backup > hose the other side of the wing and the angle the wing had to be placed > in, > partly also due to the position of the bladder-convoluted hose connection > pressing on the cylinder neck may have caused a pinching effect on the > wing > which may slow the migration of the gas from the left side of the wing to > the > dump hose. > > So, after this long story, I would check this out to see if it is a > possible > cause for your buddy. > > David Shimell > shimell@se*.co* <mailto:shimell@se*.co*> * DDI: 01932 814096 * > Mobile: 07770 282 202 * Fax: 01932 814343 > Project Manager, IBM UK Web Server Division, Sequent Computer Systems > Limited, > Weybridge Business Park, Addlestone Road, Weybridge, Surrey, KT15 2UF, UK > registered in England and Wales under company number: 1999363, registered > office as above > > -----Original Message----- > From: Taylor, John [SMTP:john.taylor@cs*.co*.uk*] > Sent: Monday, March 06, 2000 1:22 AM > To: 'techdiver@aquanaut.com' > Subject: Wing deflation problem > > I had a problem recently where a buddy was unable to dump air from her > wing. > The wing in question was a DiveRite Classic wing, the buddy was diving > wetsuit and twin AL80s. > > Is there some inherent problem with wings in general which can cause this > problem under certain circumstances? > > If not, is this a known problem with DR wings and are the Halcyon wings > any > better (in this respect)? > -- > John Taylor > CREDIT | FIRST > SUISSE | BOSTON > Equity Derivatives and Convertibles Unit > * +852 2101 6927 (Office) > * +852 2101 7698 (Fax) > * +852 9031 6395 (Mobile) > * mailto:john.taylor@cs*.co* > * mailto:do@sc*.or*.hk* > > > > > This message is for the named person's use only. It may contain > confidential, proprietary or legally privileged information. No > confidentiality or privilege is waived or lost by any mistransmission. > If you receive this message in error, please immediately delete it and all > copies of it from your system, destroy any hard copies of it and notify > the > sender. You must not, directly or indirectly, use, disclose, distribute, > print, or copy any part of this message if you are not the intended > recipient. CREDIT SUISSE GROUP and each of its subsidiaries each reserve > the right to monitor all e-mail communications through its networks. Any > views expressed in this message are those of the individual sender, except > where the message states otherwise and the sender is authorised to state > them to be the views of any such entity. > > > > -- > 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'. This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. CREDIT SUISSE GROUP and each of its subsidiaries each reserve the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorised to state them to be the views of any such entity. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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