+ Reply to Thread
Page 1 of 4 1 2 3 4 LastLast
Results 1 to 10 of 34

Thread: Advice needed for habitat

  1. #1
    RBW Member gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas's Avatar
    Join Date
    Jan 2006
    Location
    Athens,Greece
    Posts
    506
    Megalodon

    RB80 Clone, CastoroC96, RGU

    Advice needed for habitat

    We are planning the installation of a habitat in one of our cave projects as the diving is now getting deeper (-101 so far with prospect of much more) and the water is quite cold. (10-11 deg C) and at an altitude (800m).
    Since there is a tight restriction at the cave entrance that will not allow the use of a “trash bin” type of habitat and since the habitat must be placed around 350 meters in the cave we have been inclining to set up an inflatable habitat made out of vulcanised rubber (the stuff inflatable RIB boats are made).
    So here come the questions:
    Should we set the habitat at 12m or 9 meters depth?
    Should we build a metal frame or we can get away with wide “belts” frame as I have seen in a picture?
    Anyone would be kind enough to provide sketches of a similar habitat?
    As for the support we are trying to find a spot (ceiling) to hold the habitat with a combination of caving bolts on the bottom.
    Any advice /comments / drawings / fotos will be highly appreciated!
    Thanks
    George

  2. #2
    Deep Cave Explorer DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM's Avatar
    Join Date
    May 2005
    Location
    France
    Posts
    359

    Re: Advice needed for habitat

    -12m since 4 years and alive and kicking ;) stay in while -12 -9 and -6 stops clears and back to the surface at 3 minutes per meters on pure O2 just like a us navy table. Don't forget to rinse every 15 or 20 min, I find that with air (0.21*2.2= 0.46 b) I've got more Loren-Smith effects, on 10/50 (0.22b) no L-S effects but of course more expensive to run ...

    Good luck

  3. #3
    RBW Member gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas's Avatar
    Join Date
    Jan 2006
    Location
    Athens,Greece
    Posts
    506
    Megalodon

    RB80 Clone, CastoroC96, RGU

    Re: Advice needed for habitat

    Quote Originally Posted by DrJM  View Original Post
    -12m since 4 years and alive and kicking ;) stay in while -12 -9 and -6 stops clears and back to the surface at 3 minutes per meters on pure O2 just like a us navy table. Don't forget to rinse every 15 or 20 min, I find that with air (0.21*2.2= 0.46 b) I've got more Loren-Smith effects, on 10/50 (0.22b) no L-S effects but of course more expensive to run ...

    Good luck
    thanks for the info.
    a couple of questions:
    1. do you just add up the time for the 12,9 and 6 stops and do the time in the habitat or do you "accelerate" the habitat stop?
    2. could you point me to some reading about the "Loren-Smith effects"

  4. #4
    Deep Cave Explorer DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM's Avatar
    Join Date
    May 2005
    Location
    France
    Posts
    359

    Re: Advice needed for habitat

    Quote Originally Posted by gtzavelas  View Original Post
    thanks for the info.
    a couple of questions:
    1. do you just add up the time for the 12,9 and 6 stops and do the time in the habitat or do you "accelerate" the habitat stop?
    2. could you point me to some reading about the "Loren-Smith effects"

    1) I'm taking the vr3 in the habitat and wait for him to clear, if you'll use tables add your 12 9 and 6m stops and do them in the habitat, do not accelerate stops, we are doing past -100m dives into the unknown of the hyperbaric medecine so let's be conservative :o

    2) By Loren Smith effect I mean coughing burning sensation of the lungs due to too much exposure to O2 by the alveoli of the lungs, therefore the need of flushing with air or trimix every 15 or 20 min for 5 minutes.
    For papers on L-S check Mr Google or mail Simon Mitchel

    All the best

    Jerome

  5. #5
    Deep Cave Explorer DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM's Avatar
    Join Date
    May 2005
    Location
    France
    Posts
    359

    Re: Advice needed for habitat

    Forgot to say:

    FLUSH the habitat every 20 min for 5 min with some fresh AIR !!!!

    That will make it breathable in case of hyperoxia or hypercapnia, you can even attach yourself in the habitat with a harness in case of a hyperoxia where you would fall down and drown in the water.

    And drink a lot, a liter per hour would help you desaturating :)

  6. #6
    RBW Member Mikel-Deko is a jewel in the rough Mikel-Deko is a jewel in the rough Mikel-Deko is a jewel in the rough Mikel-Deko is a jewel in the rough Mikel-Deko is a jewel in the rough Mikel-Deko is a jewel in the rough Mikel-Deko is a jewel in the rough Mikel-Deko is a jewel in the rough Mikel-Deko's Avatar
    Join Date
    Jul 2005
    Location
    Basque Country -Sp-
    Posts
    851
    HH Inspiration / Joki

    Dolphin, Megalodon, RGU

    Re: Advice needed for habitat

    Quote Originally Posted by DrJM  View Original Post
    Forgot to say:


    And drink a lot, a liter per hour would help you desaturating :)
    A liter per hou of WATER... BEER not desature

    After some humor, just a question.
    Does somebody know how to make a abitat for sea-diving?
    We have been thinking about it for some time, but can't find the right way.
    We will need it for a wreck dive in -110 mtrs.
    Thanks
    Mikel-deko
    Last edited by Mikel-Deko; 28th June 2007 at 09:43.

  7. #7
    All IMVHO obviously... Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field has a reputation beyond repute Ben Field's Avatar
    Join Date
    Aug 2005
    Location
    Weymouth, England
    Posts
    3,023
    NVMCCR Inspiration

    Classic KISS, Sport KISS

    Re: Advice needed for habitat

    Purely out of curiosity- do you have any monitors in the habitat for PPO2 etc? (I guess a CO2 monitor would be ideal here or may be a Canary? :D )

  8. #8
    Deep Cave Explorer DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM is a glorious beacon of light DrJM's Avatar
    Join Date
    May 2005
    Location
    France
    Posts
    359

    Re: Advice needed for habitat

    No need to ppo2 check the habitat if you rinse it with air every 20 minutes ; - )

  9. #9
    RBW Member decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie has a reputation beyond repute decoweenie's Avatar
    Join Date
    Feb 2005
    Location
    Dubai
    Posts
    5,516

    Re: Advice needed for habitat

    Quote Originally Posted by Mikel-Deko  View Original Post
    Does somebody know how to make a abitat for sea-diving?
    with 2,000-lb of lead... ;)

    I think the last person mentioned about building a saltwater wreck-diving habitat was Captain-JT... :p

  10. #10
    Stefan Besier caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7 has a reputation beyond repute caveseeker7's Avatar
    Join Date
    Jan 2005
    Location
    Germany
    Posts
    5,677
    PRISM Topaz & Sport KISS

    (still owned) MK15

    Re: Advice needed for habitat

    Quote Originally Posted by decoweenie  View Original Post
    with 2,000-lb of lead... ;)
    Easier to attach it first and then sink the ship ...

+ Reply to Thread
Page 1 of 4 1 2 3 4 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts