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Scuba Forum / UK Scuba / February 2004UKRS pot dive report
Here's a brief write up and some photos from our afternoon out at the NDC Chepstow for the UKRS pot dive that took place on Saturday. http://www.bubbling-under.com/diving/reports/chepPotUKRSfeb04.html Thanks for organising Danny, an interesting experience! Chris >Here's a brief write up and some photos from our afternoon out at >the NDC Chepstow for the UKRS pot dive that took place on Saturday. > >http://www.bubbling-under.com/diving/reports/chepPotUKRSfeb04.html Interesting profile.... It's almost raw Buhlmann with no conservatism added at all. 10m/min descent rate. No deep stops. (1st Pyle stop would have been at 27m, 1st GF stop with my settings would have been at 21m) 5m to surface in no time at all? Wow. Even I wouldn't do that profile on my Inspriation. Hands up who had prickly skin afterwards? Gordon > 5m to surface in no time at all? > > Wow. > Gordon <snipped> The final profile of the dive as shown on Chris' computer is incorrect. I was outside the pot, as I had been working there during the day (or as Chris put it, "getting free air fills")I can confirm that they were held at 6 mtres for 3 minutes, and then a further 3 minutes at 3 metres. Prior to "surfacing" the operter asked everyone to confirm that their computers were clear of any decompression obligations. Steve "Steve Jones" <steve.jones@wda.co.uk> wrote in message > at 6 mtres for 3 minutes, and then a further 3 minutes at 3 metres. That's right. As I said in the report, due to the computer being dry, when we got to 3m, it thought it had surfaced even though they held us 3m for 3mins. Chris >> 5m to surface in no time at all? >> [quoted text clipped - 4 lines] > >The final profile of the dive as shown on Chris' computer is incorrect. OK. I didn't see that the first time I read it. Even so, it seems to go against everything we've been doing for the past few years. A few deeper stops in the ascent wouldn't have done any harm at all... BTW: I remember a warning never to have my Aladin Nitrox out of water if it were in a chamber... Never quite worked out why though - maybe it thought it was dry therefor on the surface? Gordon > BTW: I remember a warning never to have my Aladin Nitrox out of water > if it were in a chamber... Never quite worked out why though - maybe it > thought it was dry therefor on the surface? > > Gordon AFAIK it's because the seals are warranted for pressure whilst immersed in liquid, not gas. If the seal was slightly porous, the case of your computer would slowly equilibrate with the chamber, and could then suffer a 'reverse squeeze' at the end of the dive, possibly damaging seals, casing or pressure sensor. This was the reason given to me when I was advised to remove my dive watch before going into a chamber - they had broken several in the past. So why don't they offer a shallow bowl of water so your computer or dive watch could sit in 2 or 3 inches of water during your dive? > > BTW: I remember a warning never to have my Aladin Nitrox out of water > > if it were in a chamber... Never quite worked out why though - maybe it [quoted text clipped - 9 lines] > dive watch before going into a chamber - they had broken several in the > past. > So why don't they offer a shallow bowl of water so your computer or > dive watch could sit in 2 or 3 inches of water during your dive? When we 'dived' the DDRC there was this bucket.... The profile was quite different too. nigelH http://www.nigelhewitt.co.uk/stuff/ddrc.jpg Oh I see... I didn't read the page until after the first post... they did offer a bucket of water but you just held on to yours. > > BTW: I remember a warning never to have my Aladin Nitrox out of water > > if it were in a chamber... Never quite worked out why though - maybe it [quoted text clipped - 9 lines] > dive watch before going into a chamber - they had broken several in the > past. "rnf2" <rnf2@NOSPAMwaikato.ac.nz> wrote in message > Oh I see... I didn't read the page until after the first post... they did > offer a bucket of water but you just held on to yours. Ok, I've slightly reworded that bit...they didn't offer us a bucket of water. This was due to us moving from the anti-chamber into the main section once we had been blown down. Chris > "rnf2" <rnf2@NOSPAMwaikato.ac.nz> wrote in message > [quoted text clipped - 7 lines] > > Chris Reworded??? so now I have to go and re-read that page :) *grumbles and mutters as he stalks off to the link* > http://www.bubbling-under.com/diving/reports/chepPotUKRSfeb04.html ...and the trips page has been updated. Al. >Here's a brief write up and some photos from our afternoon out at >the NDC Chepstow for the UKRS pot dive that took place on Saturday. > >http://www.bubbling-under.com/diving/reports/chepPotUKRSfeb04.html > >Thanks for organising Danny, an interesting experience! Thanks all for coming, it's something I have wanted to do for a fair old while. Finally got it done, if you have never done it then I would reccomend it, loads of fun! For those that are interested here is a link to the profile on the second dive, the aladins did not surface at 3m! http://www.danshome.org/bits/chamber_profile.gif Danny > Here's a brief write up and some photos from our afternoon out at > the NDC Chepstow for the UKRS pot dive that took place on Saturday. [quoted text clipped - 3 lines] > Thanks for organising Danny, an interesting experience! > Chris And another one, photoless until I get them developed. Again, many thanks to Danny for putting this together, thoroughly enjoyed by all. CAS -- Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ "The measure of a man's wealth is the fewness of his wants" - Jack Mullholand > > Here's a brief write up and some photos from our afternoon out at > > the NDC Chepstow for the UKRS pot dive that took place on Saturday. [quoted text clipped - 10 lines] > > CAS Sorry, must still be narked! http://divesite.calumscott.me.uk/ukrs/chepstow_pot_2004 CAS -- Temperature @ Stoney? Find it or share it @ http://stoneytemps.calumscott.me.uk/ "The measure of a man's wealth is the fewness of his wants" - Jack Mullholand |
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