Welcome to ScubaBoard, an online scuba diving forum community where you can join over 205,000 divers diving from around the world. If the topic is related to scuba diving, this is the place to find divers talking about it. To gain full access to ScubaBoard (and make this large box go away) you must register for a free account. As a registered member you will be able to:

  • Participate in over 500 dive topic forums and browse from over 5,500,000 posts.
  • Communicate privately with other divers from around the world.
  • Post your own photos or view from well over 100,000 user submitted images.
  • Gain access to our free classifieds marketplace to buy, sell and trade gear, travel and services.
  • Use the calendar to organize your events and enroll in other members' events.
  • Find a dive buddy or communicate directly with scuba equipment manufacturers.

All this and much more is available to you absolutely free when you register for an account, so sign up today!

NEW for 2014 Access SBlogbook for members. It allows you to directly upload data from your dive computer, validate your logs digitally, link your dives to photos, videos, dive centers (9,000 on file), fishes (14,000 on file) and much more.

If you have any problems with the registration process or your account login, please contact the ScubaBoard Support Team.
Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 29
Like Tree12Likes

Thread: Pros and cons of Nitrox

 


  1. #11
    Registered


    Love the Ocean.
     

    Join Date
    Sep 2011
    Location
    Victoria BC
    Posts
    183
    Dives
    100 - 199
    Get it one day you'll be doing 4-6 dives a day for a few days and there is no sense in spending a ton of money and banging your head against the NDL on the second day.

  2. #12
    Registered


    wonders whether Schrödinger
    liked having pets
     

    Bubbletrubble's Avatar
    Join Date
    May 2006
    Location
    Seussville
    Posts
    4,808
    Dives
    200 - 499
    Photos
    31
    Get the nitrox cert at your earliest convenience. You'll definitely want to take advantage of using nitrox when you are diving Bonaire. Many dive ops on the island give a "free" upgrade to nitrox, so you might as well use it.

    t-mac opined that your Galapagos trip will be a "once-in-a-lifetime" trip. Since you're already located in Ecuador, the trip to the Galapagos really isn't too far from home. I'd guess that, if you have a good time on this trip, you'll be back for more later. Considering your experience level, it might be best to discuss with your dive op the possibility of visiting easier/more sheltered sites. You can save the more challenging/exposed sites featuring strong currents for later dive trips when your skills are better and you have more experience.

    Have a great time on your upcoming dive vacations!
    Ear Equalization problems? Check out Dr. Kay's Ear Lecture for Divers.

    What would you do? ScubaBoard has a "What if...?" series geared for beginner divers.

  3. #13
    Tech Instructor


    Somewhere hanging at 20'
     

    Teller's Avatar
    Join Date
    Dec 2009
    Location
    Sarasota, Florida, United States
    Posts
    999
    Dives
    I'm a Fish!
    More O2 equals more BT and less SI. These are the biggest reasons to use nitrox for the recreational diver.
    Brent Teller
    Technical Scuba Diving Instructor
    NAUI, TDI and IANTD

    http://www.divewithbrent.com
    brent.teller@gmail.com



  4. #14
    Registered


    Has not set a "status"
     

    t-mac's Avatar
    Join Date
    Jan 2012
    Location
    Bangkok, Thailand
    Posts
    399
    Dives
    100 - 199
    Quote Originally Posted by Bubbletrubble View Post
    t-mac opined that your Galapagos trip will be a "once-in-a-lifetime" trip. Since you're already located in Ecuador, the trip to the Galapagos really isn't too far from home. I'd guess that, if you have a good time on this trip, you'll be back for more later. Considering your experience level, it might be best to discuss with your dive op the possibility of visiting easier/more sheltered sites. You can save the more challenging/exposed sites featuring strong currents for later dive trips when your skills are better and you have more experience.

    Have a great time on your upcoming dive vacations!

    Okay, so maybe not once-in-a lifetime for the Galapagos for you -- we should all be so lucky to be so close to such fantastic diving. Still, it will be an expensive trip (you don't own the dive op, do you? ) and you will want it for Bonaire too and the point is the same. Anyway, seems like the unanimous opinion is to do it! Have a great time!

  5. #15
    h90
    h90 is offline
    Registered


    Has not set a "status"
     

    Join Date
    Nov 2006
    Posts
    987
    If cheap...do it, but the advantages aren't as great as they tell you.
    No, or not much benefit on shallow dives. Can't be used on real deep dives. Less tired on the end of the day: If everyone is repeating it and believing it, than maybe...Placebo effect....
    But specially if you dive more than 2 times per day, there are big benefits.

  6. #16
    Scuba Instructor


    Get My New Book "The
    First 130 feet" Available
    Now at Amazon.com
     

    offthewall1's Avatar
    Join Date
    Oct 2007
    Location
    Baltimore, MD
    Posts
    1,131
    Dives
    2,500 - 4,999
    Photos
    52
    Nitrox - ?

    Nitrox has a place in recreational diving but not everyone needs it and not everyone will benefit from it.

    Preface: I'm a Scuba Instructor with ratings from 4 agencies (and teach Nitrox,) a former dive shop owner, current commercial dive business owner, with more than 3000 dives. With all that said, others will disagree with what I'm about to say... so take what I say - and what they say - into consideration... and then make your own decision.

    Nitrox can increase either bottom time or your safety factor, but not both at the same time. In other words, you can stay down longer using Nitrox then you can on air due to the increase in the partial pressure of oxygen in the mixture, however if you use this extra bottom time, the end result of nitrogen in your system is the same as it would have been on air in a slightly shorter dive.

    The alternative is to dive Nitrox, but to dive the same profile as you would have using air. The same depth and the same time. Doing this builds in a greater safety factor by reducing the amount of Nitrogen in your body.

    The limiting factor of Nitrox is the MOD or maximum operating depth. Nitrox is not for deeper diving. In fact, the higher percentage of Oxygen can become toxic at depth and kill you. For this reason I do not advise new divers to use Nitrox until they have mastered buoyancy. I further advise that they do not use Nitrox on wall dives or blue water dives where it is easy to lose track of depth. I have seen more than one diver drift deeper than their planned dive... in each case luckily they were just on air... which caused Nitrogen Narcosis. While this is bad, it's fix is easy - simply ascend, and with the help of others, they were safely escorted to shallower depth and the condition resolved itself. Had they been using Nitrox, they most likely would have convulsed and died from oxygen toxicity.

    It is important to understand the risks vs the rewards. Too many of my scubaboard buddies simply throw out - YES, GET NITROX. The fact of the matter is I've been diving safely for 15 years... and while I'm Nitrox certified and certified to teach it - I have not dove it since 2003. I simply don't see significant benefit vs. cost and danger.

    Most people I know who dive it do so for the safety factor moreso than the extended bottom time. They don't admit it... but it is obvious. When they dive Nitrox and I dive air - on the same wrecks, we all get in and out of the water at the same time. Yes, I often have to do a decompression stop because I'm on air - but I've come to enjoy these. Over the years some of the coolest things I've seen in the open ocean have come by while hanging on the line.

    In any event, consider everything and then make your decision. You really won't be wrong either way... Just understand the proper way to dive and practice your skills.

    Happy and Safe Diving.
    Lirpa246 likes this.
    Ken Barrick
    KB Diver Services Inc.(443)-231-7052
    www.kbdiverservices.net
    Shop Online with us
    For Everything In, On and Around the Water

  7. #17
    Scuba Instructor


    CHT, DMT, EMT, OWSI
     

    WB2GLP's Avatar
    Join Date
    Jul 2007
    Location
    Jersey
    Posts
    435
    Dives
    500 - 999
    Photos
    24
    Roberto, are you and your wife diving with computers? Are they capable of adjusting for nitrox? Having the flexibility to dive with nitrox is a big benefit, but having a computer to fully realize the advantages should be your first concern. If you have them good. If not, that should be your first step.

    Since you're new to diving, I would encourage you both to take a traditional course that will include a couple dives under the supervision of an instructor rather than going the online route. Asking a web app how to program your computer for 32% is pretty difficult, especially while on a dive boat or a desolate beach on Bonaire.

  8. #18
    Assimilated Medical Mod


    Currently broken
     

    TSandM's Avatar
    Join Date
    Jul 2005
    Location
    Woodinville, WA
    Posts
    34,685
    Dives
    1,000 - 2,499
    Photos
    28
    Blog Entries
    1
    Dive Bug Bit Me summarized it pretty well, but I'd like to add a couple of things.

    Nitrox is not for deep diving -- the benefits of it are most relevant in the middle recreational range, between 60 and 100 feet. Below 100, you have to use such a light mix that your increased no-deco time is not substantial; above 60 feet, your no-deco time will often exceed the time you can manage on the gas you have.

    Nitrox IS excellent for trips where you are doing multiple dives per day, over multiple days. Even those 50 and 60 foot dives can add up under those circumstances.

    In addition, taking the Nitrox class will review your OW instruction about decompression, which is never a bad thing.
    KWS and Dive Bug Bit Me like this.
    "If something goes tits up, don't count on rising to the occasion. You will fall to what you have truly mastered." (PfcAJ)
    My dive journal can be read here, and a current dive blog HERE
    Okay, you've heard all our opinions. Want to know what the science is? http://archive.rubicon-foundation.org/
    www.divematrix.com

  9. #19
    Registered


    Let the chaos begin
     

    Saxatilis's Avatar
    Join Date
    Mar 2009
    Posts
    96
    Dives
    200 - 499
    Agreed on the no brainer comments. I also agree that if you find yourself most limited by NDL nitrox will be a big help. However, I don't feel that diving nitrox leaves you less tired than diving air. I know a lot of other divers who do feel that way though. Even so, I make a lot of dives to the 60-130 fsw range and it really does help your NDL particularly in the shallower ranges.

    Watch your MOD and dive safe!

  10. #20
    Photographer


    Has not set a "status"
     

    jhayes75's Avatar
    Join Date
    Jul 2008
    Location
    Mandeville, LA
    Posts
    1,103
    Dives
    100 - 199
    Photos
    105
    Quote Originally Posted by offthewall1 View Post
    Nitrox - ?

    Nitrox can increase either bottom time or your safety factor, but not both at the same time. In other words, you can stay down longer using Nitrox then you can on air due to the increase in the partial pressure of oxygen in the mixture, however if you use this extra bottom time, the end result of nitrogen in your system is the same as it would have been on air in a slightly shorter dive.
    Partially true, the end result at depth would be about the same, but you will off gas quicker because of the increased oxygen intake during your accent and safety stop. So you will have less Nitrogen in your blood once on the boat than you would with just 21%. This is why your computer or tables will show a lesser time frame for surface intervals.

Page 2 of 3 FirstFirst 123 LastLast

Similar Threads

  1. Replies: 221
    Last Post: August 9th, 2014, 10:34 AM
  2. Nitrox pros and con
    By cwaver in forum Basic Scuba Discussions
    Replies: 8
    Last Post: June 22nd, 2005, 09:44 PM
  3. Pros and Cons of Nitrox: What are they?
    By ScubaTexas in forum Basic Scuba Discussions
    Replies: 53
    Last Post: April 23rd, 2004, 09:10 PM
  4. Suunto Vyper Pros and Cons
    By jimisurf in forum Computers, Gauges, Watches and Analyzers
    Replies: 14
    Last Post: March 2nd, 2003, 04:16 PM
  5. P-Valve...pros and cons?
    By MacLeod in forum Exposure Suits
    Replies: 5
    Last Post: August 26th, 2002, 09:12 PM

Posting Permissions

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