Once known as Hartley18
Join Date: Aug 2007
Location: Melbourne, Australia
Thanked 65 Times in 65 Posts
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Re: Need answer to something I've always Wondered About
By the time you actually feel the pressure in your lungs, you've long passed the critical point.
From my own experience holding my breath from the surface (so no danger of lung damage,) I feel quite a bit of pressure just from swimming, working (scraping the prop, for example,) and just using up my oxygen. Think about that "bursting" feeling you have at the end of a long breath hold while swimming. I'm not at all convinced that I'd notice a dangerous pressure change before it's too late. Those 60 people in 2008 probably didn't either.
Hang on there just a cotton-pickin' minute..
We're not (and I'm most certainly not!) talking about scuba diving
- we're talking about cleaning someone's hull. I don't know many people at all whose boats draw more than around 8ft - and if they do, they can certainly afford to pay a professional diver to do it.
The posts I've made here are based solely on my own personal experience and not in any significant depth of water. As long as you're not stupid about this, yes, you simply, routinely, exhale when (frequently) coming up to the surface.. from 6 feet down. If you doubt me, go try it in a swimming pool.
"Honestly, I don't know why seamen persist in getting wrecked in some of the outlandish places they do, when they can do it in a nice place like Fiji." -- John Caldwell, "Desperate Voyage"
Last edited by Classic30; 07-25-2013 at 08:33 PM.