BTW, out of curiosity I sent the Convert Excel...Web Page people one of my spreadsheets. It came back a day later and is a piece of crap compared to the original spreadsheet. I'm sorry I suggested it.
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OP
No worries. I didn't have a good feeling when looking over their web page. Thanks for being the guinea pig!
Rob, I LOVE your first paragraph on that page!
:spit:
They're going to come out of the woodwork now!!!!
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:spit:
They're going to come out of the woodwork now!!!!
Thanks for the intro, but it's something else.
On the RMV calculator page:
Working RMV is calculated by descending to a set depth, finding an unmovable structure (a big rock works great), noting starting pressure, swimming as fast as you can while trying to move it for 2 minutes, and noting ending pressure.
In one of my past safety courses, I had to lie face down in about 2' of water (with an instructor holding my rig) and fin as hard as possible for one minute then just switch regs. That was a real eye-opener, I will never get that "winded" under water again. (I'm a runner so it's not like I'm unfit)
-I know the level of instructor that you are and hesitate to question your drill. However, that one skill that I had to perform left a permanent impression.
Losing a mask or fumbling the the backup reg is a serious issue when air-starved. Maybe pre-screen your students with what I had to perform before you take them to depth???
IJS
OP
I can't even begin to guess how many students I've had do this drill. No issues so far. But I also don't have them switch regs. I have also done this drill and had no issues. And I'm nowhere near a runner since I have bum knees and ankles. In fact, I do no cardio workouts at all.
- Messages
- 7,659
- Reaction score
- 4,720
- # of dives
- 200 - 499
Thanks for your honest response. I've done the same drill many times also, up until I personally found it to present a transient but highly elevated risk.
My biggest concerns and doubts have to do with my ability to deal with a panicked diver in a situation where I just arrived on the scene from even a fairly short sprint swim.
Thanks, Rob.
-lowviz
OP
I don't sprint swim for anything. I'm always within a few fin kicks from my students so I can get to them pretty quickly. Exerting myself to get to someone else who may be having issues is going to do nothing for the situation. I can move pretty fast without overexerting myself. Overexerting yourself to help someone else can just create 2 victims.
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