Quote Originally Posted by LCF View Post
I've never had a prolonged true zero viz situation, except in a class, but I've dived in Lake Washington, where the viz can be literally one or two feet. I don't like it at all; I get vertigo when bereft of a visual or tactile reference. So, on the worst dive I've done, I listened to my breathing, to make sure it was slow and regular, and chanted, "I'm maintaining, I'm maintaining, I'm maintaining very well . . . How long are we going to do this again? I'm maintaining . . . "

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When I dove the plane in Lake Washington it was truely black. I didn't slow my descent fast enough and descended down into the bottom silt at 150 FFW which is several feet thick. I kept telling myself you have plenty of gas for this dive, just breathe...just breathe. After I followed our line to the plane we could see about 3-5 feet. DARK!!!