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I understand that part of the screening test for PFO involves the use of a Valsalva maneuver to increase intra-thoracic pressure which may open an unsealed PFO and allow right to left shunt of the injected micro-bubbles. Exertions following a dive such as climbing a boat ladder fully kitted or...

Welcome to SB. Good to see ya here. I have a Flexi II system with an HID head. I quite like your system and would like to purchase more components but am having a little trouble finding shops that carry it. Could you list out a few shops in British Columbia that would stock light heads...

Acanthurus and I have just returned from 2 fun weeks in Maui and we would like to make special mention of some of the dive operators we had the pleasure of meeting there. First, Doug "Eel Whisperer" Corbin, aka shakadoug. We did 8 dives with him and had a great time. We know that shore diving...

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As I stumble and bumble through my sixth decade I am noticing more and more the frailties of the human body. I have moderate myalgia most of the time and I and my doctor are unsure of the cause...although I suspect a statin hangover from a trial period with a combo of those drugs a year...

Hi Tobin, My wife is getting serious about getting into a BP/W rig after completing her 100th dive recently. Her gear setup: White's Fusion with Mk2 undies Aqua Lung i3 BC with integrated weights Dive Rite Slimline can light Turtle fins Aqualung Micra reg Right now she is using...

This is a very compelling talk by u/w photog Brian Skerry. It is worth watching: Brian Skerry reveals ocean's glory -- and horror | Video on TED.com

Caution....Ted.com is an addicting site....enter at your own risk.;) Very inspiring talk and a must see/hear: Dan Barber: How I fell in love with a fish | Video on TED.com

Just saw my first mantis shrimp while diving Lady Elliot Island on the GBR. I had heard stories that they are wildly powerful and can break the glass of aquariums or the lenses or domes of underwater cameras when cornered. Whilst snooping around to find out more about them I came across this...

Hello Lowermainlanders, My wife and I will be in Van Apr 20-25 and we will be doing some diving in the area. It will be her first time in these waters so we will probably start out with a day out at Porteau but we are hoping we can hook up with some of you guys and girls at some of your...

Hi Vintage Divers, I was first certified in 1979 when horse-collar BC's (no power inflator) and 71 cf steelies on backpacks were de rigueur. Not exactly vintage era but certainly different from the stuff today. Jacket style BC's were just making their first appearances and I seem to...

Hi All, Have been diving (not fanatically) for about 28 years (150 or so dives) and am finally in the situation where I can finally give it some serious attention. Hunting for gear and opportunities and places and people to do it with. Just booked 5 days on the Taka out of Cairns and...