Petrel 3 Warranty In September 2024 Shearwater released a bulletin on their Petrel 3 computers. This bulletin identified a problem with the computers, open circuit, and closed circuit. The problem can cause a failure, during a dive, which resets and disables the computer. They immediately released this bulletin and, [...]
Choosing a Rebreather You want a rebreather but - which one? There are dozens of closed-circuit rebreathers available and they all claim to be the best. Is there one that's better than the other? How do you pick the right unit? What is the best rebreather? There is no single best rebreather. That does [...]
Stage Rigging This guide shows step-by-step photos for building a stage kit for stage or deco cylinders used in technical diving. You'll need: ~72inches of paracord 12in section of Low-Pressure regulator hose OR 5/16 fuel tubing 2 medium-sized bolt snaps Speed clamp with protective tubing Tools Lighter Scissors Short section [...]
Diving Equations Highlights of important math for diving - primarily focused on deco diving. Depth to Pressure To convert feet to a unit of pressure (atmosphere or bar) we take the depth, divide by 33 (how many feet are in an atmosphere), and remember to add the surface atmosphere. [...]
Deco Dive Planning This page is a supplementary page for decompression divers enrolled in a decompression course or certified decompression divers looking to refresh. You can not complete a decompression dive with a reasonable margin of risk management with this guide alone. It's a supplement. For dive planning [...]
Choptima Updates The Dive Rite O2ptima CM (choptima) has had several updates and upgrade offerings since its release in 2020. I put together a summary of these changes to help divers who purchased a unit years ago, are looking at used units, or are interested in upgrading a new unit with fancy bits. [...]
Instructor Development Course (IDC) It’s time to take your passion and make it your paycheck! Becoming a scuba instructor is a rewarding and challenging process. South Florida offers unique benefits for your Instructor Development Course (IDC) and Instructor Evaluation (IE). If you’re traveling in for your courses here is what to expect [...]
Choptima CCR Bailout One big benefit of chest mount rebreathers, like the Dive Rite O2ptima CM, is that they attach to existing open circuit systems. You can use them with doubles or sidemount with very few changes. Traditional backmount units require stage style bailout – or backmounting bailout which drastically increases [...]
Most Important CCR Skill Manually maintaining PO2, bailing out, simulated failed electronics- what’s the most important skill for a new rebreather diver? Hint: It’s none of those. Closed Circuit Rebreather (CCR) diving carries unique risks compared to open circuit (OC) diving. We need unique risk mitigation tools [...]
Rebreather Courses Rebreathers require special training to be used underwater. Training is the first step in learning the crucial procedures that make rebreather diving enjoyable and mitigate risk to an acceptable level. Most rebreather manufacturers won't even sell a unit without the diver being committed to a training course. Even then they [...]
