All Posts By

Jill Heinerth

May 10
0

Test Your Knowledge – PO2 Drop

By | All Posts, Rebreather Diving | No Comments

Question: You are swimming along the deck of your favorite wreck. For some reason your PO2 is dropping, causing frequent oxygen injections to catch up to your stepping. You keep dumping gas. What’s going on? Answer: It is possible that you have a leak in your ADV that is causing small amounts of gas to sneak into the counterlung. If your rebreather has a manual diluent injection button, that could also be leaking. Failures always require you to abort the dive, but you can diagnose the problem on the dive boat by removing and replacing the diluent connections to the counterlung or ADV…

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May 05
0

Gareth Lock Offers Thoughtful Examination of Phil Gray Fatality

By | All Posts, Rebreather Diving | No Comments

Technical diver Gareth Lock focuses his attention on how human factors affect sport diving accidents. He has created an invaluable resource for CCR Divers with countless contributions to understanding human error in safety. Lock serves in the Royal Ari Force and often correlates his experience as a tactical flight instructor to application in diving. His company Cognitas Incident Management and Research also manages the Diving Incident Safety Management System (DISMS) which is an open, transparent, detailed, and importantly, confidential reporting system for sport divers irrespective of their preferred training agency or method of diving. Ultimately, the idea is to improve diver and diving safety through…

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May 03
0

Gretchen M. Ashton Guest Blog about Fitness in Diving

By | All Posts, Women Underwater | No Comments

This post is provided by Gretchen M. Ashton, CFT, SFT, SFN, NBFE, Founder ScubaFit, LLC Co-author ScubaFit© Diver Course – also approved as the PADI ScubaFit© Diver Distinctive Specialty Hi Jill and Renee, I enjoyed reading your book Women Underwater; particularly the section on fitness for diving, and more specifically fitness for women divers.  Often this discussion includes gender differences such as size, body shape and the unique health and medical concerns of women.  I also think women are more interested in being comfortable than men which leads some women to seek out solutions and others to simply choose not to participate.  Although generations of…

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Apr 30
0

Test Your Knowledge: Open Loop

By | Rebreather Diving | No Comments

Question: It is always recommended to carry a bailout bottle when diving deeper than 18m/60 feet deep, but how would you handle an emergency situation if your bailout second stage was breathing wet and you did not have a BOV on your unit? Answer: Let’s face it. You have had a really bad day if you bailed from your rebreather to your bailout tank only to discover that your second stage is filling up with water. The good news is that you can still access the gas in your diluent tank and bailout tank while breathing with a technique that is…

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Apr 23
0

Full Face Masks and Rebreathers

By | All Posts, Rebreather Diving | No Comments

I recently published this short news item in the “In The Loop” newsletter I wrote for Hollis. It examines their efforts to build full face masks for rebreathers. At the international RF3.0 (Rebreather Forum 3.0) event in 2012, delegates unanimously agreed that further study off FFMs was warranted by the industry. As a result, Hollis launched a challenging investigation and design process, while training agencies PADI and TDI decided to begin curriculum development for programs to train CCR users in the safe use of FFMs. Full face masks (FFMs) are specialized enhancements that should only be used by  experienced CCR…

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Apr 16
0

Chester the Manatee and the Very, Very, Terribly, Bad Itch

By | All Posts, Cave Diving, Rebreather Diving, Sidemount Diving, Underwater Photo and Video, We Are Water, Women Underwater | No Comments

Chester the manatee is making his debut! I approved the final proof this morning and placed an order for the first shipment of books. I am really excited to offer up a beautifully illustrated children’s book that will help instill and environmental ethic at an early age. Sometimes I am not sure if it is too late to change the core values and daily practices of adults, but I know I can help kids to love their water resources and want to protect them. I’ll make a post as soon as the books are available of sale. All proceeds continue…

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Apr 11
0

Chester the Manatee and the Very, Very, Terribly Bad Itch

By | All Posts, Underwater Photo and Video, We Are Water, Women Underwater | No Comments

We’re very close to releasing a children’s book that will help teach lessons about water conservation. Beyond that message, it helps build self esteem in kids to teach them that anything is possible and that their own unique qualities will help save the world! We want every young person to feel empowered to take on great things. The book is a part of the mission of We Are Water and we hope to publish it in numerous languages for a wide audience.

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Mar 25
0

Card Games

By | All Posts, Underwater Photo and Video | No Comments

Originally published in my DIVER Magazine column Final Cut – March 2015 Choosing the Right Memory Card for Your Camera Digital cameras use a removable storage device in the form of a memory card in order to store your  video and photo files. When you tear open the box of  a new camera, you sometimes  need to temper your excitement. That new camera may not include a memory card, which means delayed gratification and yes, spending a few more dollars before you can use your new device. Flash memory cards use solid-state technology, meaning that there are no moving parts…

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