adjusting the regulator pressure

Questionhow is the pressure at the intermediate pressure stage of a regulator adjusted on a piston regulator? I know it can be done on a diaphram regulator

about opening a scuba diving business

Questionhello im a student from malaspina college in bc canada . I was wondering if you could help me . im doing a project on opening a dive centre from sc

oxygen cylinders

QuestionQUESTION: Can we use 100% oxygen in diving cylinders at grater depths. If not what are the possible complications. If yes for how much depth can we

Regulator inflator problem

QuestionI own a Mares MRS1000 BC.  I just completed the pool portion of a Drysuit course.  Apparently, there is a leak when the inflator button i

making decopression stage with 50% air 50% oxygen

QuestionPlease advice on the following: when a diver dives with normal air to 45 meters at 20 minutes bottom time,upon the decompression stage 6 meters use

pro sub dcv /bcd

Questioni havce a pro sub bcd. there is no serial # just the letters dcv on the bcd. i dove with this bcd for the first time and pulled on the rear dump va

Breath holding while swimming

QuestionQUESTION: I am a reasonably fit and active 66 year old. After playing badminton I pop into the pool for a swim and cool down. I have a very modest

swimsuit material

QuestionI have a idea. Im trying to locate and purchase wet suit material. AnswerHi Sullivan, Im sorry for the delay in getting back to you but I was out

Buoyancy Control in a Drysuit

QuestionHi Mike! Please address the apparent divergence of opinion amongst very experienced divers (instructors, et. al.) as to whether the drysuit should

Diving mask Skirt

QuestionJesse: I have a small tear in the skirt of my new mask. It is on the cheek lone of the mask and is about 3/8 long. Is there any way to repair this

RPD question

QuestionHello Gustavo, Thank-you for your time in answering my question. I am a bit confused when calculating the following types of questions: Example I

RDP Chart

QuestionQUESTION: Thank-you for your time in answering my question. I am a bit confused when calculating the following types of questions: Example If you

breathing and panic

QuestionHi James, Ive been diving for 12 years but only averaging 3 or 4 dives a year, mostly in the caribbean.  Lately Im having breathing and panic

Holding ones breath while scuba diving

QuestionHey, hows it going? I am just wondering why one should not hold thier breath under water while breathing from an air tank. ....I know I do not know

holding ones breath

QuestionHey, hows it going? I am just wondering why one should not hold thier breath under water while breathing from an air tank. ....I know I do not know

New Dive Shop

QuestionMy wife and I recently purchased an existing dive shop, and were wondering what the best approach to marketing we should take.  We have a fair

Twin Independent Cyl. vs. Manifolded Dbls

QuestionHi Again Mike! I am getting ready to take an intro class with a wreck diving school which requires two full sized cylinders (at least AL80s - ponys

scuba diving atmosphere

QuestionI have been told an Atmospere in scuba diving is 33 feet deep, (2 atmosperes being 66 feet, etc). I have not been able to find anything varifying t

diving masks

QuestionHow long should a silicone mask last (i.e. does silicone deteriorate over time)?  Thanks AnswerHi Eric Silicone is an amazingly resilient ma

Heavy

Question Im 10 years old but I 125 pounds heavy. Can I scuba dive with a alumium tank? AnswerHello Zac.  Thanks for asking a good question.  The