For someone that felt the OW course in 1 weekend was rushed in terms of feeling 100% comfortable with even somewhat basic skills, and probably taking the course the most seriously of my group of 7... I know I said it before but all of you are awesome to share your views with me
I want to feel like I'm safe and thinking about things properly and some of the things mentioned I wouldn't think of otherwise, so at least now I'm aware:
- progression of free diving / breathing--> scuba
- orally inflating a BC
And anything else from additional tips, etc..
Thank you! ❤
A fascinating discussion with lots of great input!
One tiny bit of additional input to put things in perspective. Some skills are critical at the beginning and always (never hold your breath). They are usually quickly learned and only dangerous when forgotten.
Others are more subtle, but critical to your enjoyment of diving. In that category I would place trim and peak performance buoyancy. Some never master them, but still seem to muddle along.
My last bit of suggestion would be things that have an obscure reason for learning, but carry a hidden importance that is often never taught, because a problem is relatively rare. That brings me to "orally inflating your bcd".
Yes, it's nice to have the hose pop off and be able to continue your dive. At any given depth, whatever air you had in your bcd will be sufficient if you were neutral, and there will be no need to add more orally unless you wish to go deeper. During ascent, gas will be expanding, and you will vent your bcd as you were taught early in training.
As an equipment geek, here's my contribution. Why is it really taught at all? Not for the reason you'd think.
You need to orally inflate because the hose is disconnected or the inflator doesn't work.
Why doesn't the inflator work? Because the inflator is the single most failure prone part of your kit.
Why the hose disconnected? Because the inflator is the single most failure prone part of your kit. When it won't quite turn off and your bcd keeps receiving air, you need to disconnect the hose.
When you press the button to give your bcd a blip of air, and instead the valve sticks wide open, you need to get that hose disconnected ASAP, or you will have an uncontrolled and dangerous ascent!
The inflator fails from neglect and salt water.
Your $1000 regs get a loving soak after a dive trip. They get tuned every year and serviced every three years. BCD's come into the shop with their regs for service only about 1/3 of the time.
Instead, your bcd gets a quick spray down and a pull on the butt dump valve. Maybe it gets dried in the shade, maybe not. Either way, salt crystals slowly form in the workings of the inflator mechanism. Valve parts corrode. And it keeps on working until the day it doesn't.
A wide open inflator valve can kill you. Somewhere down your priority list, practice hose disconnection.
As for your bcd, after a trip fill the bladder via the oral inflation hole, or unscrew the butt dump. Rinse out the bladder, and put some fresh water back in. Screw on the butt dump and check it for leaks.
Empty it not only by pushing on the exhaust valve button, but
on the inflation button as well. That will allow a tiny stream of fresh water to flush out the critical inflator valve mechanism, and slow the inevitable onset of potentially life threatening corrosion.
Safe diving!