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--part1_be.145b9ddf.282ea45f_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Thom: You are getting good advice, to build your experience slowly so that you will be prepared to do dives like this safely. The amount you don't know now is glaring to the rest of us. You need to learn and gain experience. You are planning 51 minutes run time in 37-42 degree water. You are not going to be happy hanging on the line for 28 minutes of deco. Have you used a stage bottle before? Probably not if you are even thinking of using a steel 120. The drag of the steel stage will make you very uncomfortable during the dive, and will make you do a lot more work. This will add to CO2 build-up and narcosis -- as will the cold, and the mental aspects of diving in low visibility water. I have known many divers with about your experience level who felt dizzy and disoriented descending when all they could see is swirling brown water, the line and their buddy. You are thinking of diving mixes that are narcotic at the depth you plan, and are also adding to narcosis with other factors. I can see you are stubbornly going to do your dive anyway, no matter how much advice you get to take it more slowly. Why not plan a dive on a shallower wreck that gives you 5 minutes of hang time maximum and learn how to do deco when it is barely longer than a safety stop? Why not do a run through of your dive plan on a much shallower site (50' max) and simulate your plan? I think you will find the flaws, and you will be at a depth where you can ascend immediately if you want or need to. You can't do that with a deco ceiling above you. I understand your desire to spend more time on some of the beautiful Great Lakes wrecks, but don't get too far ahead of yourself. Get experience doing recreational dives. Get training for the dives you plan to do. With less than 100 dives, and all of 8 below 100', you are not prepared. Jan In a message dated 5/12/01 12:17:23 AM Eastern Daylight Time, thom.hadfield@ho*.co* writes: > > > Thanks for the advice. I do have a plan sorry I wasn't more clear in the > post. I will probably dive on 25% using this secedule > > Waypoint at 140ft for 20:00 (22) on Air, PPO2 1.076, END 140 > Deep Stop at 120ft for 0:33 (23) on Air, PPO2 0.952, END 120 > Deep Stop at 110ft for 0:33 (24) on Air, PPO2 0.890, END 110 > Deep Stop at 100ft for 0:33 (24) on Air, PPO2 0.829, END 100 > Deep Stop at 90ft for 0:33 (25) on Air, PPO2 0.767, END 90 > Deep Stop at 80ft for 0:33 (26) on Air, PPO2 0.705, END 80 > Deep Stop at 70ft for 0:33 (26) on Air, PPO2 0.643, END 70 > Deep Stop at 60ft for 0:33 (27) on Air, PPO2 0.581, END 60 > Deep Stop at 50ft for 0:33 (27) on Air, PPO2 0.519, END 50 > Deep Stop at 40ft for 0:33 (28) on Air, PPO2 0.457, END 40 > Norm Stop at 20ft for 6:00 (34) on Air, PPO2 0.334, END 20 > Norm Stop at 10ft for 17:00 (51) on Air, PPO2 0.272, END 10 > > TOTAL DECO TIME: 28 minutes. > DIVE RUN TIME: 51 minutes. > CNS Total: 9.0% > OTU's: 26 > > I plan on diving either a 120 or double 80's. I am leaning toward a 120 > just for familarity I normally dive with a 120. My dive buddy has a lot > more expierence than I do but also has no deco expierence. I am using > laminated navy tables to take with me and I have a computer that will > calculate deco to 350' I am using zplan to plan out the dive and it is the > plan I intend to dive if everything goes as planned. However I will have > tables and a computer for back up. I will carry an ascent reel and an extra > 80 or 120 (haven't decided which) stage bottle down with me and attach it > to the wreck near the ascent line. My buddy is planning the same. I may > also carry it with me these are the things I plan on working out in a > quarry. Also we are considering hanging another tank off the bow of the > boat as a third extra air tank.I want to do the dive not because of depth > but because I want more than 10 mins on this wreck. > I dive safe the last time I dove the wreck I planned for 140'. The wreck > is in something like 135 feet but I added in a little for error and safety > incase something happened myself or my buddy hit bottom. Anyways my max > depth was 128' and my computer told me I had another 9 mins left at that > depth but I procedded back to the ascent line according to my dive plan. > For me or my buddy this isn't a personal accomplishment it is wanting extra > time to view the splendor of this wreck. We didn't decide to do a deco dive > to prove anything we decided we wanted to have more time at that depth and > the only way was a deco dive and we felt ok doing it on air or 25%. We are > planning no penetration except a descent and ascent into the main wide open > cargo hold. > I believe trimix is good and I had not even considered trimx because I felt > this dive plan was acceptable to do on air or 25%. But when I posted a > question for tips and suggestions I had a major response that this was > unsafe on air and I must use trimix or a variation there of. I feel > comfortable on this wreck and the depth on air. However I didn't know what > to expect extending my time into decopression ranges. > Sorry for the lengthy discussion but I thought it might better give you an > idea of my dive plan. > > Thanks Thom > > >> ----- Original Message ----- >> From: <A HREF="mailto:joe@po*.co*">Joe</A> >> To: <A HREF="mailto:thom.hadfield@ho*.co*">Thom Hadfield</A> >> Sent: Sunday, May 06, 2001 8:19 AM >> Subject: Re: Re. Deco diving >> >> >> Hi Thom: >> >> Do yourself a big favor and just dive. Forget about trimix for a while >> and forget about depth. The way to become a proficient and safe diver is >> to evolve into it. At less than 100 dives thinking about trimix is >> ludicrous. I know the agencies may list 100 dives as a prerequisite for >> trimix, but believe it that you are not ready even at 200 dives. >> >> Let me explain. You could learn to execute a trimix dive after 50 dives. >> As a college student you most probably could learn the theories and the >> math in 20 minutes. Its probably all stuff you already know. What you >> can't learn is the stuff that only time and experience will teach you. >> When you make your screw ups (and you will, just like the rest of us) you >> want them to occur and a depth and in a circumstance you can survive. A >> mishandled incident at 75' is quite survivable. That same event at 300' >> or with a serious decompression ceiling will probably kill you. If you >> review most of the accidents, one of the common threads in them is people >> diving beyond their experience level. They take a course, get certified >> and then kill themselves doing something stupid like an uncontrolled >> ascent. >> >> Helium is no voodoo mystery gas. Diving it is essentially the same as air >> diving. What you need are good in water skills, excellent buoyancy >> control and the ability to handle task loading. What makes it challenging >> to the novice is not the gas. It is the ability to monitor your deco >> schedule, switch to the correct gas at the correct depth while making sure >> your buddy is on the correct gas, deploy a lift bag and possibly manage an >> unexpected emergency like you broke the knob off your deco bottle in the >> closed position or tangled the reel on the lift bag - all at the same time >> and without endangering yourself and others. If you jump right into >> advanced diving, you will surely "pass" the courses but in spite of that >> you won't have the experience level to fall back on when the sh** hits the >> fan. That experience is what will keep you alive and you won't have it. >> >> The skills you need to successfully execute any advanced dive begin with >> basic diving skills. Refine those skills and build up that experience and >> evolve into the advanced diving. For now, content yourself with >> recreational level diving and work on the skills specific to advanced >> diving (reels, lift bags multiple bottles etc. etc.) and when you are >> ready to take the courses you will really reap the full benefit of your >> instructors knowledge because he won't have to waste time teaching you >> things you should already know. >> >> >>I guess the risks of narcosis which at the depths and times I have done >> I didn't experience >> >>any is not that great at the dive I am planning. I have heard it is a >> fairly safe plan to that it is >>not a safe plan. Well that's a little of >> my background and thankyou for your reply's >> >> Now to answer your questions. >> >> You won't "feel" the narcosis until it gets to the point of the >> ridiculous. Much like after "one beer" you are impaired but don't know >> it. >> >> As far as a plan goes, you have none. (Other than to go to 140' which is >> not a plan.) >> >> Are you diving a single tank or doubles? Have you made provisions for air >> emergencies? What are your air rules? What is your run time? Is this a >> planned decompression dive? If not, do you know what to do if you >> overstay and wind up in decompression? If it is do you have contingency >> tables? Will you have enough gas to decompress? Are you using a computer >> and if so, do you have a table to back it up? What about your buddy? Is >> he at the same level as you? Will he be an asset or a liability in the >> event of a mishap? >> >> If this is one of those personal depth things my advice is to can it. If >> it is a legitimate dive with a purpose other than depth, think about the >> questions I have asked you and formulate a dive plan. >> >> That said, should you have any questions, feel free to ask. If I can >> answer them I will. Also, take note we have had two fatalities this week. >> One a highly experienced "tech" instructor and the other a college >> student open water diver who was curious about a cave. Walk before you >> run. >> >> Best of luck and dive safe. >> >> Joe Citelli >> >> >> >> >>> ----- Original Message ----- >>> From: <A HREF="mailto:thom.hadfield@ho*.co*">Thom Hadfield</A> >>> To: <A HREF="mailto:techdiver@aquanaut.com">techdiver@aquanaut.com</A> >>> Sent: Thursday, May 10, 2001 8:23 PM >>> Subject: Re. Deco diving >>> >>> >>> I am planning on doing the ebber ward which I have been on 3 times. The >>> max depth I reached on the ward was 128'. I have been over 100' probably >>> 8 times wothout getting out my log. I have dove several wrecks in the 40 >>> to 100' foot range. I dive a lot in the st. Clair river which has low vis >>> and current. I do most of my practice dives there. I am currently signed >>> up for Nitrox. I also do not have 100 dives in yet which seems to be the >>> basic first step for Trimix. I will have those in by the end of this >>> year. All of my expierence is in cold greatlakes water. I do not plan any >>> wreck penetration for this dive except for a verticle decent and ascent >>> into the wide open cargo hole which I have done on a previous dive. The >>> max depth for the ward unless you start to dig a hole underneath the >>> wreck is just dhy of 140' so I am planning my dive for 140 but I donot >>> plan on spending much time at that depth. >>> I am interested in trimix and I do believe it to be safer than air or >>> nitrox at this depth but I have not found a store in my area who teaches >>> it. Also it appears online that the training runs about $800 which to me >>> as a college student is a bit high. However I know the response of what >>> price can you put on a life will come up. I guess the risks of narcosis >>> which at the depths and times I have done I didn't expierence any is not >>> that great at the dive I am planning. I have heard it is a fairly safe >>> plan to that it is not a safe plan. Well thats a little of my background >>> and thankyou for your reply's >>> >> > > Visit my web page with underwater and other photos at http://members.aol.com/jsuw3/index.html --part1_be.145b9ddf.282ea45f_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit <HTML><FONT FACE=arial,helvetica><FONT COLOR="#800040" SIZE=2 FAMILY="SCRIPT" FACE="Comic Sans MS" LANG="0">Thom: <BR> <BR>You are getting good advice, to build your experience slowly so that you will <BR>be prepared to do dives like this safely. The amount you don't know now is <BR>glaring to the rest of us. You need to learn and gain experience. <BR> <BR>You are planning 51 minutes run time in 37-42 degree water. You are not <BR>going to be happy hanging on the line for 28 minutes of deco. <BR> <BR>Have you used a stage bottle before? Probably not if you are even thinking <BR>of using a steel 120. The drag of the steel stage will make you very <BR>uncomfortable during the dive, and will make you do a lot more work. This <BR>will add to CO2 build-up and narcosis -- as will the cold, and the mental <BR>aspects of diving in low visibility water. <BR> <BR>I have known many divers with about your experience level who felt dizzy and <BR>disoriented descending when all they could see is swirling brown water, the <BR>line and their buddy. <BR> <BR>You are thinking of diving mixes that are narcotic at the depth you plan, and <BR>are also adding to narcosis with other factors. <BR> <BR>I can see you are stubbornly going to do your dive anyway, no matter how much <BR>advice you get to take it more slowly. <BR> <BR>Why not plan a dive on a shallower wreck that gives you 5 minutes of hang <BR>time maximum and learn how to do deco when it is barely longer than a safety <BR>stop? Why not do a run through of your dive plan on a much shallower site <BR>(50' max) and simulate your plan? I think you will find the flaws, and you <BR>will be at a depth where you can ascend immediately if you want or need to. <BR>You can't do that with a deco ceiling above you. <BR> <BR>I understand your desire to spend more time on some of the beautiful Great <BR>Lakes wrecks, but don't get too far ahead of yourself. Get experience doing <BR>recreational dives. Get training for the dives you plan to do. With less <BR>than 100 dives, and all of 8 below 100', you are not prepared. <BR> <BR>Jan <BR> <BR> <BR> <BR>In a message dated 5/12/01 12:17:23 AM Eastern Daylight Time, <BR>thom.hadfield@ho*.co* writes: <BR> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px"> <BR> <BR>Thanks for the advice. I do have a plan sorry I wasn't more clear in the <BR>post. I will probably dive on 25% using this secedule</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Waypoint at 140ft for 20:00 (22) on Air, PPO2 1.076, END 140 <BR>Deep Stop at 120ft for 0:33 (23) on Air, PPO2 0.952, END 120 <BR>Deep Stop at 110ft for 0:33 (24) on Air, PPO2 0.890, END 110 <BR>Deep Stop at 100ft for 0:33 (24) on Air, PPO2 0.829, END 100 <BR>Deep Stop at 90ft for 0:33 (25) on Air, PPO2 0.767, END 90 <BR>Deep Stop at 80ft for 0:33 (26) on Air, PPO2 0.705, END 80 <BR>Deep Stop at 70ft for 0:33 (26) on Air, PPO2 0.643, END 70 <BR>Deep Stop at 60ft for 0:33 (27) on Air, PPO2 0.581, END 60 <BR>Deep Stop at 50ft for 0:33 (27) on Air, PPO2 0.519, END 50 <BR>Deep Stop at 40ft for 0:33 (28) on Air, PPO2 0.457, END 40 <BR>Norm Stop at 20ft for 6:00 (34) on Air, PPO2 0.334, END 20 <BR>Norm Stop at 10ft for 17:00 (51) on Air, PPO2 0.272, END 10</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">TOTAL DECO TIME: 28 minutes. <BR>DIVE RUN TIME: 51 minutes. <BR>CNS Total: 9.0% <BR>OTU's: 26</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">I plan on diving either a 120 or double 80's. I am leaning toward a 120 <BR>just for familarity I normally dive with a 120. My dive buddy has a lot <BR>more expierence than I do but also has no deco expierence. I am using <BR>laminated navy tables to take with me and I have a computer that will <BR>calculate deco to 350' I am using zplan to plan out the dive and it is the <BR>plan I intend to dive if everything goes as planned. However I will have <BR>tables and a computer for back up. I will carry an ascent reel and an extra <BR>80 or 120 (haven't decided which) stage bottle down with me and attach it <BR>to the wreck near the ascent line. My buddy is planning the same. I may <BR>also carry it with me these are the things I plan on working out in a <BR>quarry. Also we are considering hanging another tank off the bow of the <BR>boat as a third extra air tank.I want to do the dive not because of depth <BR>but because I want more than 10 mins on this wreck.</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> I dive safe the last time I dove the wreck I planned for 140'. The wreck <BR>is in something like 135 feet but I added in a little for error and safety <BR>incase something happened myself or my buddy hit bottom. Anyways my max <BR>depth was 128' and my computer told me I had another 9 mins left at that <BR>depth but I procedded back to the ascent line according to my dive plan. <BR>For me or my buddy this isn't a personal accomplishment it is wanting extra <BR>time to view the splendor of this wreck. We didn't decide to do a deco dive <BR>to prove anything we decided we wanted to have more time at that depth and <BR>the only way was a deco dive and we felt ok doing it on air or 25%. We are <BR>planning no penetration except a descent and ascent into the main wide open <BR>cargo hold.</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">I believe trimix is good and I had not even considered trimx because I felt <BR>this dive plan was acceptable to do on air or 25%. But when I posted a <BR>question for tips and suggestions I had a major response that this was <BR>unsafe on air and I must use trimix or a variation there of. I feel <BR>comfortable on this wreck and the depth on air. However I didn't know what <BR>to expect extending my time into decopression ranges.</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Sorry for the lengthy discussion but I thought it might better give you an <BR>idea of my dive plan. </FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Thanks Thom</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">----- Original Message ----- <BR><B>From:</B> <A HREF="mailto:joe@po*.co*">Joe</A></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR><B>To:</B> <A HREF="mailto:thom.hadfield@ho*.co*">Thom Hadfield</A></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR><B>Sent:</B> Sunday, May 06, 2001 8:19 AM <BR><B>Subject:</B> Re: Re. Deco diving <BR> <BR> <BR>Hi Thom:</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Do yourself a big favor and just dive. Forget about trimix for a while <BR>and forget about depth. The way to become a proficient and safe diver is <BR>to evolve into it. At less than 100 dives thinking about trimix is <BR>ludicrous. I know the agencies may list 100 dives as a prerequisite for <BR>trimix, but believe it that you are not ready even at 200 dives.</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Let me explain. You could learn to execute a trimix dive after 50 dives. <BR>As a college student you most probably could learn the theories and the <BR>math in 20 minutes. Its probably all stuff you already know. What you <BR>can't learn is the stuff that only time and experience will teach you. <BR>When you make your screw ups (and you will, just like the rest of us) you <BR>want them to occur and a depth and in a circumstance you can survive. A <BR>mishandled incident at 75' is quite survivable. That same event at 300' <BR>or with a serious decompression ceiling will probably kill you. If you <BR>review most of the accidents, one of the common threads in them is people <BR>diving beyond their experience level. They take a course, get certified <BR>and then kill themselves doing something stupid like an uncontrolled <BR>ascent.</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Helium is no voodoo mystery gas. Diving it is essentially the same as air <BR>diving. What you need are good in water skills, excellent buoyancy <BR>control and the ability to handle task loading. What makes it challenging <BR>to the novice is not the gas. It is the ability to monitor your deco <BR>schedule, switch to the correct gas at the correct depth while making sure <BR>your buddy is on the correct gas, deploy a lift bag and possibly manage an <BR>unexpected emergency like you broke the knob off your deco bottle in the <BR>closed position or tangled the reel on the lift bag - all at the same time <BR>and without endangering yourself and others. If you jump right into <BR>advanced diving, you will surely "pass" the courses but in spite of that <BR>you won't have the experience level to fall back on when the sh** hits the <BR>fan. That experience is what will keep you alive and you won't have it. </FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">The skills you need to successfully execute any advanced dive begin with <BR>basic diving skills. Refine those skills and build up that experience and <BR>evolve into the advanced diving. For now, content yourself with <BR>recreational level diving and work on the skills specific to advanced <BR>diving (reels, lift bags multiple bottles etc. etc.) and when you are <BR>ready to take the courses you will really reap the full benefit of your <BR>instructors knowledge because he won't have to waste time teaching you <BR>things you should already know.</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">>>I guess the risks of narcosis which at the depths and times I have done <BR>I didn't experience </FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">>>any is not that great at the dive I am planning. I have heard it is a <BR>fairly safe plan to that it is >>not a safe plan. Well that's a little of <BR>my background and thankyou for your reply's</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Now to answer your questions.</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">You won't "feel" the narcosis until it gets to the point of the <BR>ridiculous. Much like after "one beer" you are impaired but don't know <BR>it. </FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">As far as a plan goes, you have none. (Other than to go to 140' which is <BR>not a plan.)</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Are you diving a single tank or doubles? Have you made provisions for air <BR>emergencies? What are your air rules? What is your run time? Is this a <BR>planned decompression dive? If not, do you know what to do if you <BR>overstay and wind up in decompression? If it is do you have contingency <BR>tables? Will you have enough gas to decompress? Are you using a computer <BR>and if so, do you have a table to back it up? What about your buddy? Is <BR>he at the same level as you? Will he be an asset or a liability in the <BR>event of a mishap?</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">If this is one of those personal depth things my advice is to can it. If <BR>it is a legitimate dive with a purpose other than depth, think about the <BR>questions I have asked you and formulate a dive plan.</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">That said, should you have any questions, feel free to ask. If I can <BR>answer them I will. Also, take note we have had two fatalities this week. <BR> One a highly experienced "tech" instructor and the other a college <BR>student open water diver who was curious about a cave. Walk before you <BR>run.</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Best of luck and dive safe.</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">Joe Citelli</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR> <BR> <BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">----- Original Message ----- <BR><B>From:</B> <A HREF="mailto:thom.hadfield@ho*.co*">Thom Hadfield</A></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR><B>To:</B> <A HREF="mailto:techdiver@aquanaut.com">techdiver@aquanaut.com</A></FONT>< FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR><B>Sent:</B> Thursday, May 10, 2001 8:23 PM <BR><B>Subject:</B> Re. Deco diving <BR> <BR> <BR>I am planning on doing the ebber ward which I have been on 3 times. The <BR>max depth I reached on the ward was 128'. I have been over 100' probably <BR>8 times wothout getting out my log. I have dove several wrecks in the 40 <BR>to 100' foot range. I dive a lot in the st. Clair river which has low vis <BR>and current. I do most of my practice dives there. I am currently signed <BR>up for Nitrox. I also do not have 100 dives in yet which seems to be the <BR>basic first step for Trimix. I will have those in by the end of this <BR>year. All of my expierence is in cold greatlakes water. I do not plan any <BR>wreck penetration for this dive except for a verticle decent and ascent <BR>into the wide open cargo hole which I have done on a previous dive. The <BR>max depth for the ward unless you start to dig a hole underneath the <BR>wreck is just dhy of 140' so I am planning my dive for 140 but I donot <BR>plan on spending much time at that depth. </FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">I am interested in trimix and I do believe it to be safer than air or <BR>nitrox at this depth but I have not found a store in my area who teaches <BR>it. Also it appears online that the training runs about $800 which to me <BR>as a college student is a bit high. However I know the response of what <BR>price can you put on a life will come up. I guess the risks of narcosis <BR>which at the depths and times I have done I didn't expierence any is not <BR>that great at the dive I am planning. I have heard it is a fairly safe <BR>plan to that it is not a safe plan. Well thats a little of my background <BR>and thankyou for your reply's</FONT><FONT COLOR="#800040" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR></BLOCKQUOTE> <BR></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SCRIPT" FACE="Comic Sans MS" LANG="0"></BLOCKQUOTE> <BR></FONT><FONT COLOR="#0f0f0f" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0"> <BR></BLOCKQUOTE> <BR> <BR> <BR></FONT></FONT><FONT COLOR="#800040" SIZE=2 FAMILY="SCRIPT" FACE="Comic Sans MS" LANG="0"><B>Visit my web page with underwater and other photos at <BR>http://members.aol.com/jsuw3/index.html</B></FONT></HTML> --part1_be.145b9ddf.282ea45f_boundary-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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