Category: Scuba Tech Philippines Articles


technical wreck diving tips

Top Ten Wreck Diving Tips For Safer Penetration Dives  By Andy Davis, ANDI and TecRec Advanced Sidemount, Technical Wreck Instructor, Subic Bay, Philippines   I’ve been diving on – and inside – shipwrecks for more than two decades, on 4 continents.  I specialize in teaching the highest level wreck diving courses as my full-time job.  [...]

how to tie a regulator bungee necklace 1

How to Tie a Regulator Bungee Necklace Technical, sidemount and hogarthian configuration scuba divers utilize a regulator bungee necklace for stowage of the short hose back-up.  These regulator bungee necklaces are available for purchase in many scuba shops.  The manufactured ones are made of rubber, costs are relatively high and there is no option for [...]

Diverite-Nomad-XT-Sidemount

Top 5 – Sidemount Adapter Systems The increasing popularity of mainstream sidemount diving has seen a plethora of dedicated sidemount systems enter the market in recent years.  However, many new sidemount ‘converts’ already own back-mounted wing BCD systems – and the seek the opportunity to customize their existing wings for sidemount use.    DIY back-mount [...]

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PADI Deep Diver versus the Tec40 Course  In this article, I will compare the PADI Deep Diver and Tec40 courses in detail.  Both courses are available to moderately experienced recreational divers and both courses are equal in respect of  the number of training dives and the qualification depth limit. So, what differentiates these courses… and [...]

best ascent speed for scuba diving

Best Ascent Speed for Scuba Diving Disclaimer: The opinions expressed in this article are those of the author, and they do not reflect in any way those of the institutions to which he is affiliated. Information presented in this article is not intended to advocate breaching the Safe Diving Practices taught by your scuba training agency. [...]

The Dunning-Kruger Effect and Scuba Diver Over-Confidence As a scuba instructor, one of my biggest qualms is certifying individuals with an over-confident mindset.  Confidence is good… for scuba diving, it is an important factor in countering apprehension and potential panic.  However, confidence must be based on a realistic appreciation of one’s abilities.  Lack of experience [...]

Aquamundo Sidemount BCD

A List of Modern Sidemount Diving Systems There are an increasing number of commercial ‘off-the-shelf’ sidemount systems available to purchase.  These typically fall into one of two categories; minimalist (Hogarthian-inspired) rigs and cold-water rigs. The minimalist rigs, sometimes called “British configurations” typically feature a base harness that uses lumbar and shoulder plates, to which a flat [...]

ccr rebreather safety advice

CCR Aware Video Safety advice and information for new and prospective CCR divers Other CCR safety resources: Improving Rebreather Safety: First in a series of reports on Rebreather Forum 3, by Michael Menduno. Why so many deaths? What’s the real story behind 18 deaths on rebreathers worldwide so far in 2010?, by Steve Lewis Rebreather diving: [...]

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Defining Wreck Diving Restrictions  Very few diving agencies go into detail about wreck diving restrictions. Those that do, tend to limit their definition to either ‘not restricted’ or ‘restricted’.  That definition hinges upon whether two divers could pass through simultaneously when sharing gas.  The intention of this is to prevent recreational divers entering areas that [...]

Andy-Davis-Technical-Diving-Courses Philippines

Teaser Pics: ANDI Advanced Sidemount Course I am currently editing videos and preparing a course report for the A.N.D.I Advanced Sidemount course, that finished today in Subic Bay.  The course was taught by Bruce Konefe (ANDI I.T.D #15). Here are some photos, captured from the video footage: The A,N.D.I. Advanced Sidemount course is focused towards [...]

Autonomous Progressive Scuba Skill Development

 A Guide To Expert Scuba Diving Skills Development Many scuba divers struggle for years to improve their scuba diving skills, becoming exasperated that performance seemingly refined and perfected in a training environment does not replicate in actual open water dives. Even worse, it fails them when they are confronted with the need to apply actual [...]

homemade diy sidemount rig harness system

Some Options for Homemade / DIY Sidemount Rigs I use several homemade / DIY sidemount configurations frequently when wreck diving in the Philippines.  These sidemount configurations are exceptionally economic – costing significantly less than ‘off-the-shelf’ purchased rigs. The majority of components can be bought ‘over-the-counter’ at a reasonably well stocked dive shop, and/or make use [...]

DIY Sidemount Wreck Diving Helmet

DIY Sidemount Wreck Diving Helmet I noticed, with some surprise, the high cost of cave sidemount wreck diving helmets currently being sold on the scuba market. Light Monkey sell an excellent diving helmet, but the cost (certainly here in the Philippines) was prohibitive for me.  I promote a policy of frugal investment on rugged and reliable dive [...]

wreck diving course philippines

Line Laying for Wreck Diving Penetrations – Video Tutorials Wreck diving courses include line laying practice for wreck diving penetration, however many wreck instructors have minimal personal experience in the finer points of guideline deployment and use.  Proper guideline techniques were refined and perfected in the discipline of cave diving exploration. Those techniques were adopted [...]

technical-wreck-diving-philippines

How To Evaluate A Wreck Diving Course by Andy Davis, PADI/TecRec/ANDI Sidemount Technical Wreck Instructor In this article I will be looking at what differentiates basic wreck diving courses – the good, the bad and the ugly. In particular, I want to examine specific wreck penetration issues, so that the reader may find some guidance [...]

Scuba diving skills and techniques

Scuba Diving  Skills – How to Judge Your Ascent Rate Without a Dive Computer Novice divers often express frustration about how to best conduct safe and controlled ascents from their scuba dives.   In particular, I see many new divers questioning the best technique for judging their ascent speed.  The common use of dive computers [...]

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Scuba Diving Safety Protocols: Buddy Separation Losing your buddy is an easy way to ruining a good dive.  Being alone underwater can cause many divers apprehension.  It often also ends in an aborted dive  – which sucks when you’ve spent your hard earned money, time and effort in going scuba diving. Buddy separation can be [...]

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The Value of Progressive Scuba Training – ‘Putting Another Dollar In’. When I talk with divers and read the online scuba forums I see a lot of scepticism about progressive scuba training courses.  Novice divers often question the value of courses X, Y or Z.  Many intermediate and advanced divers will profess to having wasted [...]

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Recreational Scuba Depth Limits for Deep Diving Question:   I was taught that “recreational divers plan all dives to be no stop dives” and also that  most agencies consider 40m /130 feet as the maximum depth for recreational deep diving.  That seems inconsistent when my dive computer allows me to dive below 40m/130 feet and still [...]

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Technical versus Recreational Scuba Diving:  Why is there a need for Rules, Boundaries and Limitations? There is currently a strong debate about the need to differentiate between recreational and technical scuba diving. Some people believe that ‘diving is diving’ and question the need to draw a distinct boundary between recreational and technical diving pursuits. In [...]

technical diving subic bay philipines

Ten Tips to Attain a Better Horizontal Hover – Scuba Diving Techniques by Andy Davis, Scuba Tech Philippines Scuba diving techniques to improve your comfort and capability underwater. In this article, I list ten simple techniques that will allow you to develop a better horizontal hover whilst scuba diving. 1. Get Your Weighting Right Fine-tune & [...]

technical diving subic bay philipines

Technical Diving Skills – Valve Shutdown Drill Explained This article, posted at Dive DIR, provides a very clear explanation of valve shutdown drills for isolated manifold doubles/twinset cylinders. Great reading, if you are thinking about technical diving or just doing recreational scuba dives with doubles cylinders. http://www.divedir.com/Drills-and-Skills/vdrillexplained.html A sample: Tuesday, 02 November 2010 17:39 This [...]

technical diving subic bay philipines

Technical Diving Skills – Reaching Your Valves This article, posted at DiveDIR, gives great advice on how to reach your valves when conducting valve shutdown procedures.  It’s the most comprehensive analysis of this key skill attribute that I’ve read to date.  They call it the ‘ultimate guide’… it really is! Direct Link: http://www.divedir.com/Drills-and-Skills/valve-drills-the-ultimate-guide.html Sample: Reaching Your [...]

technical diving subic bay philipines

Scuba Equipment Guide:  How to critically evaluate and purchase the perfect Buoyancy Control Device (BCD) for your needs! Shopping for a scuba buoyancy control device (BCD) is like completing a jigsaw.  There is a huge variety of products and options available for the diver to chose from.  The diver needs certain functions, but may also want certain [...]

Scuba Diving Philippines

Are You Ready For Solo Diving? by Andy Davis, Consultant Technical Diving Instructor, Scuba Tech Philippines The issue of solo diving often comes up in conversation amongst divers and the activity is increasingly being seen as a more ‘mainstream’ pursuit, now supported through formalized training courses and qualification by most of the primary scuba training [...]

technical diving subic bay philipines

Using Your Hands Whilst Scuba Diving Many novice divers wish to improve their air consumption during dives and increase their relaxation and fluidity underwater.  A major obstacle to these goals is using your hands for control and/or propulsion I think that most novice divers have an instinctive tendancy to try and ‘swim’ underwater. Who can [...]

Sidemount Technical Wreck Diving Subic Bay Philippines

Scuba Diving Tips: Choosing and Using  A Redundant Air Source by Andy Davis, PADI TecRec, ANDI, BSAC and SSI Instructor Pony cylinders are a popular choice amongst divers who seek a redundant form of air supply as a contingency for Out-Of-Air (OOA) emergencies when scuba diving.  There is a lot of debate about when, or [...]

cheap quality scuba courses

When Some Scuba courses are more Equal than Others There’s some big discrepancies in course pricing for seemingly ‘identical’ scuba courses. Cheaper courses, that result in the same certification and adhere to the same minimum agency standards should all be equal…. shouldn’t they? Why shouldn’t a prospective student simply shop around for the cheapest deal [...]

instinctive drowning response padi rescue diver scuba

Instinctive Drowning Response – Vital Knowledge for Scuba Divers and Swimmers All divers should be aware of Instinctive Drowning Response.  Those scuba instructors (and agencies!) responsible for teaching rescue diver courses should make a priority to update their syllabus and materials in recognition of the ‘real-world’ signs of a drowning victim. Several headlines that I [...]

Sidemount Technical Wreck Diving Subic Bay Philippines

Stress Management in Scuba Training – What can be done about the Panic Reaction? I’m not a psychologist, but I have noticed some trends when it comes to diver reaction to scuba diving incident stress, and how those trends can be, to a greater or lesser degree, influenced by the effectiveness of scuba training. The [...]

Sidemount Technical Wreck Diving Subic Bay Philippines

How to Dive with ‘Insta-Buddies’ by Andy Davis, PADI TecRec, ANDI, SSI & BSAC instructor. The term ‘insta-buddy‘ is popularly used within the scuba community to define a diver of unknown skill, capability and mindset – that you are paired with on a dive boat.  Typically, this term is used to describe the worst case [...]

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QUESTION:  I am a recreational diver and I dive mostly with my husband. Our relationship issues (bickering) caused me stress.  Is this a factor I should consider when scuba diving? I know of at least one diving fatality that could otherwise have been avoided if intra-relationship dispute and/or the associated stress wasn’t a factor. It’s [...]

Sidemount Technical Wreck Diving Subic Bay Philippines

Pony Cylinders and Redundant Air Sources for Wreck Diving   Recreational wreck divers often question whether they need to carry a redundant source of air when conducting specialist wreck diving activities.  Most agencies and instructors will generally recommend the use of redundant air sources to be a prudent measure for wreck divers.  However, the use [...]

Sidemount Technical Wreck Diving Subic Bay Philippines

What is Hyperbaric Oxygen Therapy (HBOT)? ANDI International Hyperbaric Research Center 74 Woodcleft Ave, Freeport NY 11520 516-546-2026 Article reproduced courtesy of Bruce Konefe  Hyperbaric is simply referencing a condition that is above standard atmospheric pressure. Instead of breathing the normal 21% oxygen, the therapy involves breathing 100% oxygen in a chamber that is moderately [...]

Sidemount Technical Wreck Diving Subic Bay Philippines

The Physics of Diving – Scuba Gas Laws A concise explanation of the critical scuba gas laws for divers by Andy Davis PADI TecRec, ANDI, BSAC and SSI Instructor Scuba diving is all about getting gas into your body while you are underwater. What complicates scuba diving is the way gasses behaves at depth, under [...]