Buoyancy Calculator

Posted Leave a commentPosted in Skills, Training

Diving weights make all the difference in your Buoyancy “Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object.” — Archimedes of Syracuse It’s the bane of all divers. We want to go down, but the inherent buoyancy in […]

Hollis Neotek Semidrysuit

Posted Leave a commentPosted in Dry suit, Tecnical Equimpent

Hollis Neotek 8/7/6 Wet-suit Experience the warmth of our new Neotek 8/7/6 cold water hooded semidry from Hollis. Made from a compression resistant 8/7/6 mm neoprene and a Hollis unique “ThermaSkin” inner liner. Includes a front neckdam with revolutionary G-Lock horizontal front zipper for clean on/off and a decent barrier in opposition to water intrusion. […]

Oxygen Sensing in Rebreather Diving

Posted Leave a commentPosted in Rebreather, Tecnical Equimpent

Reliable measurement of oxygen is the technology that makes mixed-gas closed-circuit rebreathers (CCRs) possible. For the past 50 years, all electronic CCRs but one have relied on the system invented by marine scientist Walter Starck for the Electrolung, the first commercial CCR. Introduced in 1968, Starck’s design featured three electrochemical oxygen (O2) sensors along with […]

Shearwater’s Perdix

Posted Leave a commentPosted in Tecnical Equimpent, Uncategorized

Sleek and Sophisticated Merging state of the art manufacturing techniques, innovative engineered materials, and consumer feedback, Shearwater has successfully developed a low-profile, sleekly contoured design without sacrificing features vital to technical divers. It’s everything you love about the Petrel dive computer, just smaller. Shearwater’s Perdix is a robust, low-profile, contoured computer for technical divers.   […]

Regulator’s purge button

Posted Leave a commentPosted in Uncategorized

Regulator’s purge button When trying to provide rescue breaths in the water to an injured diver, why can’t I use my spare regulator’s purge button? That seems easier to me than trying to manage a pocket mask. Answer from DAN experts:   Using the purge button of a second-stage regulator has been proposed many times, but […]

Raynaud’s Syndrome

Posted Leave a commentPosted in Work

Raynaud’s Syndrome I’ve recently been diagnosed with Raynaud’s Syndrome. I’m an avid diver. Can I continue diving?   Answer from DAN experts: Raynaud’s Syndrome decreases effective blood flow to the extremities, most significantly fingers and toes; this results in cold, pale fingers and toes, followed by pain and redness in these areas as blood flow […]