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For Divers since 1975 The Private, Exclusive Guide for Serious Divers Since 1975 |
"Best of the Web: scuba tips no other source dares to publish" -- Forbes |
Air Supply ProblemContents of this Issue: Uepi Resort, Solomon Islands, South Pacific Investing in Digital Camera and Expensive Strobes? An Aging Liveaboard, a Dangerous Dive Deck Death and the Full-Face Snorkel Masks The Diver & The Cook, Fascinating Nonfiction DEMA Working Hard To Pass The Dive Boat Act Another Liveaboard Lost in the Red Sea Two More Liveaboards Lost to Fire Editorial Office: Ben Davison Publisher and Editor Undercurrent 3020 Bridgeway, Suite 102 Sausalito, CA 94965 from the November, 2024 issue of Undercurrent
Subscriber Content Preview A friend of mine was concerned that her pressure gauge, which was reading 1,000 psi underwater, would drop to zero psi as she took a breath and then popped back up to 1,000. This happens when you don't have your tank valve fully opened (usually 3-4 turns) and you start running low on air. You basically are sucking all the air out of the hoses faster than the partially-opened valve can replenish the supply. That is why the pressure drops to zero psi, even if it's just momentary.... Subscribers: Read the full article here ; |
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