Oops! It appears that you have disabled your Javascript. In order for you to see this page as it is meant to appear, we ask that you please re-enable your Javascript!

Tag Archive: cylinder


sidemount band height andy davis

How to find the Optimal Height for Sidemount Cylinder Bands by Andy Davis Here is a quick ‘how to’ guide to configure the optimal height for your sidemount cylinder bands.  This method assumes you are using LOOP bungees. It’s correct for either steel or aluminium cylinders, whether you use waist D-rings or a buttplate/rails for […]

Sidemount Technical Wreck Diving Subic Bay Philippines

Choosing and Using A Redundant Air Source By Andy Davis 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 if, a recreational open-water diver should need a redundant air […]

Sidemount Cylinder Trim copyright 2019 Andy Davis

Ultimate Guide to Sidemount Cylinder Trim by Andy Davis This is my comprehensive guide to the good, the bad and the ugly of sidemount cylinder trim.  The aim of this article is to illustrate and explain the common errors that cause less than ideal sidemount trim and frustrate sidemount divers. Use the illustrations and diagrams […]

Sidemount Technical Wreck Diving Subic Bay Philippines

Pony Cylinders and Redundant Air Sources for Wreck Diving by Andy Davis 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, […]

Sidemount Cylinder Band Position copyright 2019 Andy Davis

Ultimate Guide: Positioning Sidemount Cylinder Bands by Andy Davis One of the most common mistakes that I see with sidemount configurations is the incorrect positioning of the cylinder bands.  When incorrectly positioned, the bands will cause the cylinders to sit too high, or too low relative to the torso. If the cylinders are too high, then […]

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 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. A sample: Tuesday, 02 November 2010 17:39 This article […]

Scuba Cylinder Specifications for Buoyancy and Weighting Calculations When scuba divers calculate their buoyancy with an aluminum cylinder,  it is essential for them to know the relative buoyancy characteristics of their chosen cylinder – at full pressure capacity and also at their minimum reserve (500psi). The following tables provide buoyancy information on the common Luxfer […]