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 1 of 4 1234 LastLast
Results 1 to 10 of 35

Thread: Naked SPG

 


  1. #1
    ScubaBoard Supporter
    Go Red - Support SB!

    Divemaster
     

    buddhasummer's Avatar
    Join Date
    Sep 2007
    Posts
    4,039
    Dives
    1,000 - 2,499

    Naked SPG

    I understand the DIR philosophy behind the naked SPG. I am also aware that one should be maintaining good buoyancy, trim and not banging equipment around etc.

    In another thread I posted someone mentioned that a slight knock to the bezel can create a leak. I assume all DIR are diving with a naked SPG so my question is just how durable are the SPGs ( assuming quality)?

    I am curious about the SPGs so figured this forum would get the most answers assuming you all dive naked, SPG that is....My diving is generally OW so the ratcheting aspect is prob not such an issue for me but I do like the idea of DIR no boot, hose protecters etc, makes sense...

    Thanks

    oh and apologies if this question is in the wrong place, I didnt know where else to post it, Im just looking for some information.

  2. #2
    Deep South DIR


    Has not set a "status"
     

    DIR-Atlanta's Avatar
    Join Date
    Mar 2006
    Location
    Atlanta, GA
    Posts
    579
    Photos
    15
    There should be no issues with cracking if you are using a good quality "brass and glass" SPG. Plastic SPGs might be a different concern, but those are not preferred for obvious reasons. Clipping to the left hip also keeps the SPG fairly well protected, so it is not as likely to get knocked about anyway.
    DIR-Atlanta meets at 7:00 PM on the third Tuesday of every month, at Little Vita, 2110 Peachtree Road NW Atlanta, GA. Drop us a line if you are interested in joining us for a meeting or dive!

  3. #3
    Registered


    Has not set a "status"
     

    DomaNitrogen's Avatar
    Join Date
    Jul 2005
    Location
    Cairo, Egypt
    Posts
    163
    Dives
    200 - 499
    Photos
    6
    I use agir SPG with no boot.... And all my diving is OW I have no issue. it's compact and i always clip it to my d-ring to avoid the spg hitting or banging in the boat during assembly.

    And if u choose the right hose length it will never go underneath ur gear.
    So it's okay its durable
    "In three words I can sum up everything I've learned about life: it goes on." Robert Frost
    -----------------------------------------------
    Adham

  4. #4
    Registered


    Has not set a "status"
     

    PhilEllis's Avatar
    Join Date
    Feb 2005
    Location
    Alabama
    Posts
    1,999

    Not Quite True..........

    Anything can be broken.....a big enough impact on a brass and glass gauge might break it. However, the cases of these gauges are VERY robust and I would not expect the normal blows from impact while diving, packing for a dive, or other related activites would casue any damage that would result in leaking. We have sold HUNDREDS of brass and glass pressure gauges, and I know of very few that have experienced any problem during use.

    Phil Ellis
    www.DiveSports.com
    In USA (800) 601-DIVE
    International (256) 350-1122

  5. #5
    Deep South DIR


    is getting back into the pool.
     

    mwhities's Avatar
    Join Date
    Jun 2006
    Location
    Mississippi
    Posts
    3,016
    Dives
    50 - 99
    Photos
    19
    Quote Originally Posted by PhilEllis View Post
    Anything can be broken.....a big enough impact on a brass and glass gauge might break it. However, the cases of these gauges are VERY robust and I would not expect the normal blows from impact while diving, packing for a dive, or other related activites would casue any damage that would result in leaking. We have sold HUNDREDS of brass and glass pressure gauges, and I know of very few that have experienced any problem during use.

    Phil Ellis
    Phil,

    I received my 2" SPG yesterday and my SP MK25/G250HP came in as well. My stage bottle is complete! (Sorry OP. :P)

    EDIT: OK, I lied, I need a 40" hose. :| (Forgot about that.)
    Last edited by mwhities; January 10th, 2008 at 11:29 AM.

  6. #6
    DIR Practitioner


    Has not set a "status"
     

    LG Diver's Avatar
    Join Date
    Feb 2006
    Location
    Los Gatos, CA, USA
    Posts
    581
    Dives
    50 - 99
    Photos
    12
    Quote Originally Posted by DIR-Atlanta View Post
    There should be no issues with cracking if you are using a good quality "brass and glass" SPG. Plastic SPGs might be a different concern, but those are not preferred for obvious reasons. Clipping to the left hip also keeps the SPG fairly well protected, so it is not as likely to get knocked about anyway.
    Also, during the pre-dive checks I always make sure the SPG is rotated toward me so that it's in the right position to view underwater without having to rotate it. This puts the glass face toward the body so if it does get bumped it's the back of the SPG that takes the blow.

  7. #7
    Registered


    Has not set a "status"
     

    daviddomus's Avatar
    Join Date
    Oct 2007
    Location
    CANCUN, QUINTANA ROO
    Posts
    76
    Dives
    200 - 499
    Photos
    3
    The advantage about having a small naked spg over a bulky plastic ow gauge w/computer or deth gauge is high, with a small hose it will keep so close to your body that it wont get damage and most important it won't damage the enviroment.

    I haven't see anyone who leaks by the spg but i do have see spg that don't run anymore cause banged, old or something else, but on DIR your spg is the backup, the real pressure tracking always remain on your head.

  8. #8
    Assimilated Medical Mod


    Counting days to CAVEZZZZ!
     

    TSandM's Avatar
    Join Date
    Jul 2005
    Location
    Woodinville, WA
    Posts
    34,161
    Dives
    1,000 - 2,499
    Photos
    28
    Blog Entries
    1
    I've had one SPG leak -- It leaked water into the face. It remained usable until the water became opaque from algae. (This happened on a vacation, in a place where it wasn't at ALL easy to find another stand-alone SPG to buy.) I have no idea how many dives were on it, because I bought it used, but I had probably put a couple hundred on it myself by the time it failed, and I suspect, given who I bought it from, it had many, many more.
    "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. #9
    Registered


    Has not set a "status"
     

    Join Date
    Oct 2003
    Location
    If I'm on the computer, I'm approximately 100 meters from the ocean. Maybe a little less. It depends on tide.
    Posts
    310
    I think it might have been my post you are referring to. "slight knock" and "small ding" shouldn't be confused. I saw how considerable the abuse was to cause the small ding to all three of my gauges.

    Instance 1- I was moving my fully assembled twinset and tripped. Falling forward, the tanks hit the deck first, I never land on them but did use them as support. While the glass was unbroken, the brass was mangled badly enough that replacement was warranted before diving.

    2-I was standing aside while another diver geared up on the bench next to my assembled rig. As he stood up the boat lurched and he sat back down heavily. The bottom of his tank dented the bezel (which was caught between tank and bench) on the glass side. The dent was incredibly small and figuring that the seal was between glass and brass, I continued to use the gauge for several dives over a couple weeks. Soon condensate appeared on the inside of the lense and shortly thereafter it became obvious that the gauge was not reading accurately.

    3- Similar to above, but, it was me that sat back down as the boat rolled, squashing the gauge between myself, my rig and deco tanks. The rest follows like above, more or less.

    Put some of those basic, robust, blue gauge covers on(like you see on fill whips, no backs, just good draining rubber rings) two seasons ago. And, haven't damaged a gauge since.
    """Good buoyancy control, control of your trim, the ability not to silt out a dive site, good buddy skills, sharp emergency procedures, and excellent situational awareness ARE for everybody who dives.""", Rick quoting Thal quoting TS&M

  10. #10
    Registered


    Has not set a "status"
     

    Join Date
    Sep 2006
    Location
    Chicago
    Posts
    110
    Dives
    200 - 499
    Photos
    4
    I think this is a classic example of diving dogma. For example in a cave diving situation, which is were DIR comes from, the naked SPG is used for streamlineing etc, and its simple and easy to see if its damaged. If on the other hand one is diving on a crowded pitching boat, some sort of compact shock protection might be a good idea. Note the response that it is on the left hip and thus safe and out of the way fails to account for the bigger picture--if its broken when you get in the water...

Page 1 of 4 1234 LastLast

Similar Threads

  1. Help naked diving
    By lilfret in forum New Divers and Those Considering Diving
    Replies: 436
    Last Post: October 17th, 2011, 09:56 PM
  2. SPG boot or naked?
    By buddhasummer in forum Computers, Gauges, Watches and Analyzers
    Replies: 10
    Last Post: January 9th, 2008, 12:58 PM
  3. really diving naked
    By mirrocraft in forum Basic Scuba Discussions
    Replies: 69
    Last Post: October 8th, 2006, 11:19 PM
  4. 98...99... Almost Naked...100
    By Under Michael in forum Ontario
    Replies: 3
    Last Post: August 10th, 2004, 10:34 AM

Posting Permissions

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