Article: modifying a Meg for deep dives

cedricverdier · 25th November 2006, 04:01

Hi all,

After the deep dives on the HIJMS Yamashiro, I received quite a lot of PMs about different modifications I've done on my Meg. So I put everything together in an article here:

http://www.rebreatherworld.com/megal...html#post80082

this article is also available to download (pdf file) here: Cedric Verdier, Technical & Recreational Diving Instructor Trainer. Articles

I'm interested in all the modifications you've done on your units. So please share your experience about what works

and what doesn't

.

Cheers

nmanfield · 25th November 2006, 09:13

Hi Cedric,

As ever, you are answering questions that I have without me asking for them. I PM'd you a few days back and received some excellent advice from you for which I'm very greatful. Your article replies to the other questions I was going to ask you! I made a comment about bailout on the following post http://www.rebreatherworld.com/gener...ail-out-2.html and wondered if you could make any comments - the mask is Drager (once the DSV arrives!) As for the comment on hoses, my cave diving Instructor, Mike Netto dived with his tanks inverted and said that he used standardised hose lengths from Dive-rite (he was a tester for the Optima so has a very good relationship with them). One final request - any chance of some photos showing the build up. Also, what sort of wing do you use?

Thanks again

Regards,

Nick

silent running · 25th November 2006, 09:25

Hi Cedric, thanks for the excellent advice about deep diving. You've got me thinking about inverting the valves on the Prism-can I reach them?

Also, I had not thought about the IP/back gas starting pressure for deep dives. Simple issue that must be delt with. Not that I'd ever do a 150M dive with 75 bar of back gas to start with... -Andy

***ScubaDadMiami*** · 26th November 2006, 04:44

Would you please post a picture of the offboard ADV block with the shut off valve (including what it looks like with the hose connected to it)?

Genesis · 26th November 2006, 05:54

I'm interested in the changes you made to the C/L attachments - am I correct that your bottom hold-downs are directly off the plate, and instead of them coming "down" they're actually going under the arms, more-or-less following the shoulder straps on the hog harness?

25th November 2006, 04:01	#1 (permalink)
cedricverdier S21 M.I.B. Current Rebreather/s: Evolution Megalodon Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Sport Kiss Classic Kiss Join Date: Apr 2005 Location: Worldwide! Posts: 494	Article: modifying a Meg for deep dives Hi all, After the deep dives on the HIJMS Yamashiro, I received quite a lot of PMs about different modifications I've done on my Meg. So I put everything together in an article here: http://www.rebreatherworld.com/megal...html#post80082 this article is also available to download (pdf file) here: Cedric Verdier, Technical & Recreational Diving Instructor Trainer. Articles I'm interested in all the modifications you've done on your units. So please share your experience about what works and what doesn't . Cheers __________________ Cedric Verdier PADI Course Director, ANDI-IANTD-PSAI-TDI-DSAT-DAN-NAUI-CMAS Instructor Trainer Trimix (CCR and OC) and Cave Diving Instructor Trainer www.CedricVerdier.com DIRrebreather member Last edited by cedricverdier : 25th November 2006 at 04:04.
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25th November 2006, 09:13	#2 (permalink)
nmanfield Megalegalegalegadingdong! Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: May 2005 Location: Odessa, Ukraine Posts: 329	Re: Article: modifying a Meg for deep dives Hi Cedric, As ever, you are answering questions that I have without me asking for them. I PM'd you a few days back and received some excellent advice from you for which I'm very greatful. Your article replies to the other questions I was going to ask you! I made a comment about bailout on the following post http://www.rebreatherworld.com/gener...ail-out-2.html and wondered if you could make any comments - the mask is Drager (once the DSV arrives!) As for the comment on hoses, my cave diving Instructor, Mike Netto dived with his tanks inverted and said that he used standardised hose lengths from Dive-rite (he was a tester for the Optima so has a very good relationship with them). One final request - any chance of some photos showing the build up. Also, what sort of wing do you use? Thanks again Regards, Nick __________________ Tub 'O Lard
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25th November 2006, 09:25	#3 (permalink)
silent running Mature mouth breather Current Rebreather/s: Prism Topaz Other Rebreather/s: Join Date: Jun 2005 Location: U.S.A. Brooklyn, New York Posts: 1,813	Re: Article: modifying a Meg for deep dives Hi Cedric, thanks for the excellent advice about deep diving. You've got me thinking about inverting the valves on the Prism-can I reach them? Also, I had not thought about the IP/back gas starting pressure for deep dives. Simple issue that must be delt with. Not that I'd ever do a 150M dive with 75 bar of back gas to start with... -Andy
(Online)

26th November 2006, 04:44	#4 (permalink)
*ScubaDadMiami* Moderator Current Rebreather/s: Optima Other Rebreather/s: Join Date: Sep 2005 Location: Florida, USA Posts: 2,066	Re: Article: modifying a Meg for deep dives Would you please post a picture of the offboard ADV block with the shut off valve (including what it looks like with the hose connected to it)? __________________ Howard Packer IANTD CCR Instructor Miami Beach, Florida CCRDiveTraining.com
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26th November 2006, 05:54	#5 (permalink)
Genesis Bubbless Box of Death Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Oct 2005 Location: Sunny Florida Posts: 1,394	Re: Article: modifying a Meg for deep dives I'm interested in the changes you made to the C/L attachments - am I correct that your bottom hold-downs are directly off the plate, and instead of them coming "down" they're actually going under the arms, more-or-less following the shoulder straps on the hog harness? __________________ "A venturesome minority will always be eager to get off on their own, and no obstacles should be placed in their path; let them take risks for Godsake, let them get lost, sunburnt, stranded, drowned, eaten by bears, buried alive under avalanches - that is the right and privilege of any free American." http://www.denninger.net http://www.diversunion.org/liability.htm - Fix the Diving Cert racket
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