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About Mike Giles
(Top Expert on this page)

Expertise
I am a Master Scuba Instructor with over 6000 dives. I can answer questions on general diving techniques, diving education and diver training. I can offer suggestions on the use and selection of proper dive equipment, general maintenance of dive equipment as well as diving equipment repair. I can also offer suggestions on air conservation techniques and buoyancy control. As a dive shop owner for 17 years, I can offer suggestions on starting/running a dive business.

Experience
I have been diving for 52 years, teaching diving for 47 years and owned a diving business for 17 years. I am a certified regulator repair technician for several different brands and a certified scuba cylinder inspector.

Organizations
I am currently a member of the Professional Association of Diving Instructors (PADI), Divers Alert Network (DAN), International Resort and Retailer Association and the Better Business Bureau

Publications
Undercurrent magazine and Divers Chapbook

Education/Credentials
I am a Master Scuba Diver Trainer with 15 distinct specialty instructor ratings, Rescue Diver Instructor, Medic-First Aid Instructor and I have degrees in Chemical Engineering, Biology and Radiologic Technology.

   

You are here:  Experts > Recreation/Outdoors > Scuba Diving > Scuba Diving

Questions Answered By Expert  Mike Giles 
In Category  Scuba Diving

SubjectDate Asked

SSI vs PADI10/13/2009
  Q: My wife and kids want to dive with me and we are new to this area. I did a little looking around and ...
  A: I'm sorry to hear that you're having problems with the certification course for your wife and kids. ...
Split fins9/27/2009
  Q: I’m fairly new to scuba diving and I have been thinking of buying my own fins. The main reason is ...
  A: You've done your homework well and I think you're definitely on the right track. I'll add my ...
Dry suits9/23/2009
  Q: I need to buy a dry suit to dive locally but I've been told there are a range of styles and features ...
  A: I mentioned in a previous answer that my expertise in dry suits is limited so I want to consult with ...
Dacor Rig PRo9/22/2009
  Q: Do you know where I can find a weight bag with clip for a Dacor Rig Pro? I realized these are no ...
  A: As you know, old Dacor parts are getting increasingly hard to find. I think your best bet is going ...
Ascending9/21/2009
  Q: Mike, Do you use any particular technique when ascending in a dry suit to help you co-ordinate ...
  A: First, let me say that I don't have a lot of experience with dry suit diving. My answer will be ...
Scuba Diving Business Task Environment9/11/2009
  Q: I'm a student studying Bcom Accounting and in Business Management we doing an assignment where you ...
  A: I've covered lots of the details of opening a dive shop, including scuba instruction, in many of my ...
use of O2 for decompression8/25/2009
  Q: Please let me know above which depth is safe to use 100% oxygen for decompression. Using 100% oxygen ...
  A: There is no absolute answer to your question. The hazard in breathing 100% oxygen is the ...
Qualitative FIn propulsion8/12/2009
  Q: Apollo Bio Fin Pro split fins appear to rate fairly high with reviews/blogs I've read so far. Also, ...
  A: I don't like to recommend brands unless a particular one has a unique feature which sets it aside ...
TEMP "C" CARD8/7/2009
  Q: MIKE I read your response to (temp c card) but i am confused exactly what is a temp c card and how ...
  A: When a student diver completes a scuba course, it takes a few weeks to process a permanent ...
Displacement ???7/22/2009
  Q: I have a question about Displacement..... Can you please explain what is ment by displacement, how ...
  A: Let me see if I can explain displacement (displacement volume) in such a way that it makes sense to ...
equalizing6/28/2009
  Q: hey i have a problem with equalizing on land about 95 percent my right ear pops but under water my ...
  A: I'm sorry to hear that you're having problems equalizing. From the information you provided in your ...
Deformed mask skirt6/23/2009
  Q: I have an old mask that was stored improperly, and now the skirt is deformed and will not seal. Is ...
  A: Hey Rubberband, Somehow I don't think that's your name but since you signed your question that way, ...
Snorkeling5/31/2009
  Q: I am going to be heading down to Mexico for 3 weeks and was wondering about some snorkeling gear. ...
  A: I don't like to recommend specific brands but I will give you my thoughts on the subject of masks, ...
Dive Shop5/6/2009
  Q: Mike, I am in the process of purchasing a dive shop in central Pennsylvania. I have taught through ...
  A: It sounds like a very ambitious undertaking!! It can be done, of course, but it's going to take a ...
wetsuits5/5/2009
  Q: I'll be heading off to Guam for the summer and am planning on getting scuba certified. Along with a ...
  A: Congratulations on your decision to get scuba certified!! I think you'll enjoy the new underwater ...
Air tank (Cylinder) for a Yacht5/4/2009
  Q: I am the Skipper of a 45 feet sailing yacht. I have scuba equipment for underwater emergency ...
  A: There are lots of skippers who keep small scuba cylinders onboard for just such an occasion. They ...
Diving education5/3/2009
  Q: I am currently looking to advance in the diving industry and was looking for some advice on diving ...
  A: I really don't know too much about the individual commercial diving schools so I'm in no position to ...
bouyancy with dry suit5/3/2009
  Q: I started using a drysuit and after diving with it for 6 dives I found the proper wieght needed. The ...
  A: I'm having a little difficulty trying to determine just what your problem may be. If I assume ...
perforated eardrums4/30/2009
  Q: of! I have a passion for sharks and marine life in general and would love to see what its like ...
  A: You pose some interesting questions and it'll be fun to provide some possibilities for you to ...
Initial Scuba Training4/8/2009
  Q: Mike, I had just taken a "discover scuba diving" course while at a resort on vacation. I had had ...
  A: I'm sorry to hear that you encountered difficulties with your scuba activities. While your reaction ...
First stage3/24/2009
  Q: I would like to ask ; The intermediate pressure of the first stage is 140 psi (average) till the ...
  A: Your confusion is well-placed!! Your follow-up question caused me to do some research of my own and ...
First stage3/20/2009
  Q: I would like to ask ; The intermediate pressure of the first stage is 140 psi (average) till the ...
  A: That's a good question and I can tell that you've already given it some thought. You are correct in ...
Starting a dive shop3/5/2009
  Q: I have two friends that are interested in opening a dive shop. They are both partners now in an ...
  A: I also received your "oops" follow-up question. You've probably already seen some of my previous ...
diving mask2/15/2009
  Q: Mike- Sadly, my diving gear has been in storage for the last 2-3 years. I just pulled it out to ...
  A: The short answer is that you cannot remove the brownish stain on the "rubber" parts of your mask and ...
Too Overweight?2/7/2009
  Q: I have signed up for a scuba class at my university. I am 18 and weigh about 225-230 pounds. I am ...
  A: there is no scuba diving weight limit". There are, however, some potential problems which should be ...
starting a dive business2/3/2009
  Q: I'm looking into starting a dive instruction business (I'm a PADI OWSI) in California and I'm ...
  A: I hope you haven't spent too much time looking for incorporation information in my previous answers ...
starting a dive business2/2/2009
  Q: I'm looking into starting a dive instruction business (I'm a PADI OWSI) in California and I'm ...
  A: ! I'm not quite sure what you mean by "business structure" but I'll assume that you want to know ...
Purchasing Equipment Online vs. Shop1/14/2009
  Q: I have an ethical question i guess. I found a little shop that I got certified through. I really ...
  A: Wow...that's a great question!! As you have surmised, there are two sides to this dilemma with no ...
scuba diving1/8/2009
  Q: Mike Giles: I have some questions for you about scuba diving. At what age can you start scuba ...
  A: ! You didn't say where you're located so some of the information I'll give you could be slightly ...
renew dive master licence11/26/2008
  Q: my brother was a dive master here in the philippines but he did not renew it for almost 3 years now, ...
  A: You didn't mention the scuba agency under which your brother was certified. The various ...
diving horizontal11/25/2008
  Q: I have a back insuflated BC. I weight around 109 pounds and I am 5 feet tall. I have been using ...
  A: From the information you provided, it sounds like your weight is about right. The problem is in the ...
scuba diving11/11/2008
  Q: Why does a scuba diver need increased gas pressure in the air tank? thank you
  A: There are two major reasons why the air in your scuba tank is pressurized. First, it allows more ...
mask fogging10/20/2008
  Q: My wife and I are new the diving and we are currently getting our open water certification (just ...
  A: It sounds like your instructor correctly identified your mask fogging problem. Exhaling through ...
Eye Injury10/10/2008
  Q: Mike, This past weekend, my girlfriend & I went diving in Catalina, California (right off the ...
  A: I'm very sorry to hear of your girlfriend's eye problems. From what you've told me, I suspect that ...
Starting a Dive Shop9/25/2008
  Q: Since you have such a breadth of experience in setting up a Dive Shop. Can you offer some advice in ...
  A: Over the past couple of years, I've written several pages on that subject in this column and I ...
Dive Shop9/22/2008
  Q: he is a masterdiver, and is also a serious freediver. He wants a dive shop but also wants to get ...
  A: First, let me apologize for the delay in answering your question. We were heavily impacted by ...
diving suits in the Caribbean9/17/2008
  Q: I am doing research for a short story. What kind of diving suit (material/equipment) is needed to ...
  A: First, let me apologize for the delay in getting back to you. We were heavily impacted by Hurricane ...
replacement license8/27/2008
  Q: I am needing a replacement license and certificate. My card is worn out. thanks, Doug.
  A: You didn't say which agency your were certified under so I cannot give you a specific procedure for ...
Difficult Breathing8/26/2008
  Q: I had my first scuba diving lesson yesterday and it was not good one. I couldn't slow my breathing ...
  A: I'm very sorry to hear that you're having problems with your scuba lessons. Anxiety is normal ...
Where in the Caribbean is good to set up a new dive school8/24/2008
  Q: Im a 37 year old ex-marine, my buddy is a top level naval diver with too many qualifications to ...
  A: First, thanks very much for your military service. It's because of people like you that we are able ...
Dive log8/23/2008
  Q: I got certified in Kenya back in 1981. When I left for university I left all my gear at home. When ...
  A: Cheers, Didier!! By all means, log the dives!! It doesn't matter that time has passed since you ...
Buoyancy and wet suits8/18/2008
  Q: When diving in the Caribbean with no wet suit I could maintain good buoyancy at surface and shallow ...
  A: First, let me assure you that you didn't do anything "wrong"!! As I'm sure you know, the 7-mil ...
opening a dive shop7/31/2008
  Q: I've been diving for over 10years now and I am trained to the rescue diver level. I'm interested ...
  A: Opening a dive shop is a great idea. If you love diving and don't mind working from dawn until ...
weigh&length of scuba unit7/24/2008
  Q: what is the approximate weight of scuba unit ?(1/separate 2/together) what is the length of hose for ...
  A: In order for me to provide some sort of answer to your questions, let me give you some rough ...
Touched a Sponge! EEEK7/17/2008
  Q: I unintentionally touched a sponge while diving in St. Vincent and the Grenadines...3 weeks ago. My ...
  A: I'm sorry to hear that you've run into an inhospitable sponge!! Your problem is not unusual and ...
breathing difficulties7/6/2008
  Q: I am just starting my confined water training and have completed the first two sessions. I am ...
  A: Congratulations on your decision to pursue your scuba diving certification!! I'm sorry to hear that ...
new wetsuit and weights6/16/2008
  Q: I recently purchased a new 3mm wetsuit which is just like the one I previously had. (old one was ...
  A: It is likely that the extra weight you require for your new wetsuit is due to the material in the ...
Shark Suits5/30/2008
  Q: I am interested in purchasing a protective suit. I snorkle and windsurf in Fla in an area ...
  A: I wouldn't recommend wearing a protective (chain mail) shark suit while snorkeling or windsurfing ...
International Dive Flag5/9/2008
  Q: Mike, We plan to dive some locations in the Greek waters and i am curious if you know if a diver ...
  A: You are correct in the use of the Alpha flag for diving. I'm not personally familiar with the legal ...
full face mask for cold water4/20/2008
  Q: i am using a hookah system and diving in very cold water, i currently use a rubber full mask but it ...
  A: There are a number of different brands of full face masks and it's impossible for me to tell you ...
proper dive weight4/20/2008
  Q: i shallow dive in rivers gold mining using a hookah system, i am 6' 1" 245LBS old and over weight by ...
  A: I assume you're the same "James" as in the previous question. I don't see a question in your ...
Scuba Diving training4/13/2008
  Q: I am really looking to find out where I could go to get certified. I had done a discover Scuba ...
  A: Congratulations on your decision to pursue your scuba certification!! Now you know why so many of ...
setting up a dive school4/12/2008
  Q: would you be able to give me some advice re procedures regarding regulations for owning a dive ...
  A: I'm not familiar with the laws and regulations in the Dominican Republic but can give you some ...
Certifiying with My Son?4/9/2008
  Q: Mr Giles, My 14 year old son and I intend to take lessons and certify through our local NAUI ...
  A: Congratulations on your decision to join the ranks of certified divers!! You're already aware ...
Scuba diving equipment3/24/2008
  Q: I have problems with my lower back and would like to know what type of BC and weights (other dive ...
  A: Unfortunately, any dive equipment that you have to wear on your back is going to impact your lower ...
good diving for beginners3/11/2008
  Q: My family is interested in becoming certified and then taking a trip to dive someplace warm...we ...
  A: I haven't been to Anthony's Key Resort in a few years so my opinion is based on "old" information. ...
Recertification Dive Cylinders3/7/2008
  Q: I have a somewhat particular question. I have been emigrated to the US from Europe. I brought my ...
  A: Your situation is not unique. The Department of Transportation (DOT) regulations change from time ...
good diving for beginners3/1/2008
  Q: My family is interested in becoming certified and then taking a trip to dive someplace warm...we ...
  A: First, let me apologize for the delay in getting back to you. I was out of town and just returned ...
age limits2/11/2008
  Q: I am 60 years old and am considering taking a scuba course before my holiday in Malta in June.I used ...
  A: I'm pleased to hear that you're considering taking up the sport of Scuba Diving. You are definitely ...
Question2/1/2008
  Q: Right now I'm taking a class about Resech methods, and I would like to do an investigation about ...
  A: The scuba diving certifications (licenses) are issued by the individual instructors but are ...
Question1/31/2008
  Q: Right now I'm taking a class about Resech methods, and I would like to do an investigation about ...
  A: The basic requirement to obtain a scuba diving certification (license)involves classroom work, ...
Why no weights?1/24/2008
  Q: I took my first lesson last night and am thrilled from the experience. I have good instructors and ...
  A: Hey Tom With regards to your statement about your "1 inch layer of fat", I can only say that ...
Why no weights?1/22/2008
  Q: I took my first lesson last night and am thrilled from the experience. I have good instructors and ...
  A: Wow...it must be nice to not need any weights!! Your information regarding the relative buoyancy of ...
diving masks1/10/2008
  Q: How long should a silicone mask last (i.e. does silicone deteriorate over time)? Thanks
  A: Silicone is an amazingly resilient material. Unlike the rubber and neoprene masks of years ago, ...
Twin Independent Cyl. vs. Manifolded Dbls12/18/2007
  Q: I am getting ready to take an intro class with a wreck diving school which requires two full sized ...
  A: The short answer to your question is "No", there is no reason why you can't keep your cylinders ...
New Dive Shop12/16/2007
  Q: My wife and I recently purchased an existing dive shop, and were wondering what the best approach to ...
  A: Congratulations on your business purchase. I hope you and your wife will find it to be a rewarding ...
Buoyancy Control in a Drysuit11/28/2007
  Q: Please address the apparent divergence of opinion amongst very experienced divers (instructors, et. ...
  A: Wow...you ask a loaded question!! There are valid opinions on both sides of this question so my ...
swimsuit material11/26/2007
  Q: I have a idea. I'm trying to locate and purchase wet suit material.
  A: I'm sorry for the delay in getting back to you but I was out of town and only got this message about ...
oxygen cylinders11/14/2007
  Q: Can we use 100% oxygen in diving cylinders at grater depths. If not what are the possible ...
  A: The question of which one is "best" does not have a clear-cut answer. It depends on the depths for ...
oxygen cylinders11/14/2007
  Q: Can we use 100% oxygen in diving cylinders at grater depths. If not what are the possible ...
  A: The short answer to your question is "No". Although oxygen is necessary to support metabolism ...
adjusting the regulator pressure10/29/2007
  Q: how is the pressure at the intermediate pressure stage of a regulator adjusted on a piston ...
  A: First, let me apologize for the delay in getting back to you. I've been out of state for the past ...
SCUBA gas cylinder9/30/2007
  Q: It was very useful to me. The greatest problem I am facing at the moment is about filling the gas ...
  A: I am troubled by a couple of things you posed in your question. First, if you are ordering a ...
NC Cape Fear8/30/2007
  Q: Mike, are you a resident of North Carolina, US?
  A: Although I have relatives in Winston-Salem, I'm currently a resident of Lake Charles, Louisiana. ...
how much weight?8/12/2007
  Q: I was wondering if there is a way to determine how much weight I will need without getting in water. ...
  A: I hate estimating weight without having seen the diver. However, based on your description, I think ...
How much weigh8/9/2007
  Q: I am purchasing SCUBA equipment and it has been a while since I have gone diving. Also, all of my ...
  A: There are a lot of "formulas" for determining how much weight you'll need but none of them are very ...
child scuba7/19/2007
  Q: My sone loves water and I have done a fair amount of diving, I wont him to have lessons, but ...
  A: First, let me apologize for the late response. I've been out of town and had very limited access to ...
SHARK PROTECTION SUIT7/10/2007
  Q: We are thinking the 'taylor' suit of mail that covers one's wet suit won't protect against a shark's ...
  A: I have no knowledge of an instance where bone fractures occurred through the chain mail suit. As ...
Agencies6/29/2007
  Q: Have you ever heard of an agency called SDA (Scuba Diving Agency)? I recently completed an online ...
  A: First, let me aologize for the delay in getting back to you. I'm currently out of town undergoing ...
Getting Started in the Business5/28/2007
  Q: If you were to start into the Dive Business today, what approach would you recommend? I have a ...
  A: Wow...that's quite a question. I could write a book on the answer to that one!! First, I've ...
what do you where under a wetsuit5/25/2007
  Q: what is the best to wear under the wetsuit.
  A: Remember, a wetsuit needs to fit skintight over as much as your body as possible in order to work ...
Maintenance of a Dacor ExtremeElle4/22/2007
  Q: Mike, I have over 200 dives on this bc and really like it other than cleaning it. The self-inflator ...
  A: It sounds like you've really gotten your money's worth out of that BC! It's a nice BC and, as you ...
re pee valve and zip on wetsuits2/5/2007
  Q: just wanted to know can a wetsuited diver have a pee valve attaced to his wetsuit and use the ...
  A: First, let me state that I'm not a drysuit expert since most of my diving is in the southern US and ...
Do I always need a wetsuit1/3/2007
  Q: I am getting ready to go through the classes for my open water certification, but I was just curious ...
  A: Congratulations on your decision to pursue your Open Water certification! I hope you find it to be ...
"kevlar" material12/22/2006
  Q: i am interested in developing an idea could you tell me where i could purchase the kevlar material ...
  A: I Googled "kevlar" and found a couple of sites which offer this material. I've never used the sites ...
Agency Affiliation10/30/2006
  Q: I am considering taking on scuba as a career, either as an instructor or possibly in conjunction ...
  A: You pose some excellent questions. I'll try to give you some unbiased advice (although I am a PADI ...
Regulators10/29/2006
  Q: 1.)What is the difference between the two types of regulator connectors (Standard 200 Bar and DIN ...
  A: First, the "Bar" designation is just another way of measuring pressure. One Bar is equivalent to ...
Opening a dive shop9/22/2006
  Q: I found your name on the internet, I am trying to find out some information on opening a dive shop ...
  A: The answer to this question is much longer than I can fully address in this columm but I invite you ...
back mount b/c size9/4/2006
  Q: I am buying my own SCUBA equipment for the first time. I'll be diving primarily on salvage sites in ...
  A: As you've noticed, they can differ considerably. First, let's establish a key point...the BC is NOT ...
breath control8/29/2006
  Q: Could you elaboprate on hissing into the regulator mouthpiece. Is this accomplished by closing the ...
  A: This is a suggestion I've made several times and I was wondering if you might have read it on an ...
Snorkeling8/20/2006
  Q: This is about snorkel masks, really. I hava a mustache and beard. Why do I need my nose covered? ...
  A: The answer to this question actually requires some additional information. If you're only going ...
Good low maintenance/cost BC and regulator8/10/2006
  Q: I hope this note or inquiry finds you well. I was certified in 1977 and have been diving ...
  A: Hey Alfredo Thanks for the letter and it's always good to talk with an "old salt"!! I started in ...
New Gear; New Weight and Bouyancy8/2/2006
  Q: Mike, I've been diving the west coast for years. I've recently purchased a new 5/7mm Henderson ...
  A: That's a great question. As you've noticed, there are lots of different ways to predict how much ...
temporary c-card7/19/2006
  Q: My temporary c-card expires in a few days and I am just now sending my application in for a ...
  A: I answered your question on the day you asked it but the All Experts people tell me that it may have ...
Dive School in Brazil7/19/2006
  Q: I´m making a project for a dive school in Brazil. I want to know What a good dive school needs ? ...
  A: That's an interesting question with a lot of different areas to consider. First you have to assess ...
BC Purchase7/16/2006
  Q: I have been offered a Scubapro Classic plus with air 2 systems for $375, I know for a fact that it ...
  A: The price for the BC and the AirII is excellent if the equipment is in good condition. Using the ...
Rec Dive in Hawaii7/16/2006
  Q: Mike, I am going to Hawaii with my son. I want to know of the adviseability of renting dive ...
  A: Renting gear from a well-maintained dive shop should not pose any undue risks for you. I would ask ...
mask storage7/2/2006
  Q: I just purchased my basic dive gear and noticed that when i placed the dive mask back into the ...
  A: Congratulations on your decision to join the realm of scuba divers!! Your question is a good one ...
Dive Watch User Replaceable Battery6/30/2006
  Q: So I have my newest scuba gadget, and in the water for the first time in four years. Well, the low ...
  A: That's a good question and the short answer is "you can do it yourself". However there are several ...
ballistic chain mail4/25/2006
  Q: sir, I understand this area isn't of your expertise but you answered a similar question for another ...
  A: As you suggested, titanium would be much lighter and would probably stand up to the forces of a ...
recreational diving equipment4/6/2006
  Q: I am CMAS* (bronze) diver and have about 50 logged dives and now I want to buy my own diving ...
  A: First let me state that I am not well versed in Cave Diving. There aren't any caves in my immediate ...
regulator pressure1/16/2006
  Q: What are the pressures of the high and low outputs on the first stage
  A: The pressures can actually vary. The high pressure port does not modulate the pressure and will ...
shark mesh or chainmael strength1/8/2006
  Q: This is really going to be an "off the wall" question. To cut to the chase, I'm wondering if shark ...
  A: I must admit, this is an unusual question...but an interesting one. Let me preface my answer by ...
amature12/27/2005
  Q: i'm 16yrs old and live in Qatar,middle east.i often visit the beach and love swimming.there is a lot ...
  A: It's a terrific sport and, at 16 years old, you're just the right age to really enjoy diving!! As ...
Rust10/14/2005
  Q: Mike, first off thanks for the time. I have a scuba knife that I have not taken care of and has ...
  A: Most scuba knives are made of either stainless steel or titanium. Titanium is rust proof but the ...
Dive Flags10/11/2005
  Q: I'm a Canadian who's just moved to Australia. I've only started diving a few years ago but have ...
  A: Maureen What a great question...and I'm surprised that it doesn't come up more often. I can shed ...
weight question9/15/2005
  Q: I was PADI certified a few years ago and have since made only a few dives. My weight belt is ...
  A: There are several "formulas" for computing the weight required for diving. It's been my experience ...
Breathing8/24/2005
  Q: I have done 20 dives so far, but not for 6 months. I have a question on buoyancy control and air ...
  A: G'Day, Marc I think I can help you understand the bouyancy and air consumption problems you're ...
3atm water resistant watch6/21/2005
  Q: I did some more research and as strange as it might sound, most of Swiss watchmakers write 3atm on ...
  A: Emilio Thanks for clarifying the "3atm" rating. As per our discussion yesterday, whether we use ...
diver's watch6/20/2005
  Q: Is it imperative to use a scuba company watch or any watch thats water resitant to 100 meters. ...
  A: Hey Emil Your follow-up reply causes me some concern. You said you got a "3atm" water resistant ...
diver's watch6/19/2005
  Q: Is it imperative to use a scuba company watch or any watch thats water resitant to 100 meters.
  A: Emil That's an interesting question since there are a number of ways to answer it. First, divers ...
regulators3/13/2005
  Q: What is the difference between an 1st and 2nd stage regulator and why is one better than the other?
  A: Patrick Thanks for your question. There is, indeed, a difference between a 1st stage regulator and ...
Slipped Disk11/23/2004
  Q: I have a female friend with a slipped disk who insists on learning how to scuba dive. She is not ...
  A: Mak Thanks for the question about your friend's back problem. Since I'm not a medical doctor, I ...
what to wear...7/4/2004
  Q: Giles, I'm about to start my open water dive certification class and was just wondering what I ...
  A: Andy Good question...and I'm glad you're thinking ahead!! Wetsuits need to fit skin tight in order ...
oxygen6/20/2004
  Q: How do people isolate oxygen to put in oxygen tanks? Is there a special machine and are they ...
  A: Babak Thanks for your insightful question regarding oxygen. Oxygen can be produced in a number of ...
scuba tank's fills5/23/2004
  Q: Me and my wife are very new divers and love the sport. We jumped in with both feet, after our ...
  A: John First, congratulations on achieving your scuba certification. It will provide a lifetime of ...
Craigcat catamaran4/15/2004
  Q: I'm considering purchasing a Craigcat for possible diving and fishing. Are you familar with this ...
  A: I wanted to reply to your question and thank you for writing. Unfortunately, I am totally ...
equipment storage3/1/2004
  Q: What's the best way to store scuba gear when not in use?
  A: Kim Thanks for asking an important question. Lots of expensive dive gear is ruined by improper ...
S.C.U.B.A. Career2/26/2004
  Q: I have always wanted to be an underwater photographer. I got my beginner's PADI certification in ...
  A: Sharon Underwater photography can be a very rewarding and lucrative profession. Many divers learn ...
Rebreathers1/5/2004
  Q: How does a dreagar Rebreather work? Also I want to Build a sub but use a SCBA for oxygen If I ...
  A: Jason Thanks for your question on rebreathers and SCBA use in a submarine. First, a rebreather ...
*SCUBA10/25/2003
  Q: I'M GOING TO COSTA RICA IN FEBURARY, I'M THINKING ABOUT GOING SCUBA DIVING THERE, I HAVE NEVER SCUBA ...
  A: Hey, Dino The diving in Costa Rica can get very challenging, especially for new divers so I'd ...
Equipment suggestions9/23/2003
  Q: I am currently working on tri-mix gas certification with goal of technical diving. Do ice diving as ...
  A: John My experience with ice diving and tri-mix gases is limited since I've done most of my diving ...
Instruction8/22/2003
  Q: I'm confused about all the different types of scuba instruction,PADI,SSI,IDEA,NAUI,is there any real ...
  A: Susan First, let me apologize for being so late in getting back to you. We've had server problems ...
Dry Suits7/22/2003
  Q: I have the opportunity to purchase a 1 year old DUI Flex dry suit for $600. If I want a new suit I ...
  A: Nathan Thanks for your inquiry about the used DUI drysuit. I'm not an expert in dry suits since ...
scuba repair tech6/17/2003
  Q: I am currently repairing medical eq. for a living but I would like to change careers and repair ...
  A: Kevin Thanks for your inquiry. Most scuba repair technicians get their start through a dive shop. ...

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