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I found a reel at the lips yesterday. If you lost it let me know.

It's a good deal seems to me.

Yea--what @The Chairman said!!

Yes.

@Divin'Papaw - I think the mods are scanning for spam 24/7 now. When one spam message is reported 20 times it takes 20 times longer to deal with it. @Wookie @thechinaman @chillyinCanada @rsingler --- Please weigh in.

It took me 20 minutes to delete the spam and clean the approval queue this morning.

Without any temperature adjustments I get 4.23 g/L. I guess this is another example of things we do and believe that aren't always exactly accurate such as with OTUs and CNS%. But it is a guideline that is better than nothing.

When you look at the two different temperatures does the density vary significantly?

Insignificant.

Not necessarily. You are welcome to make a metric version. I don't know what the imperial equivalent to g/L is. Do you?

Feet

Gas density and work of breathing (WOB) are almost directly related. The higher the density the higher the WOB. Gas density is expressed as grams/liter (g/L). High WOB increases the chances of hypercapnia, and we should not have gas density higher than 5.2 g/L. Using the formulas shown below...

IANTD has most all of their course materials online. They have redone so many, if not all of them in the last year or so. Grammar, syntax, spelling and other errors have been corrected. I just sent the Advanced Nitrox student kit to the OP. Let's see what he has to say about that manual. I think...

In my dive locker. No special instructions

Yes, it's as good as any.

Yes, of course.

I am not sure how to identify a "Drive By" posting.

Care to explain?

This method is widely acceptable/used/taught. The concern is that you are holding on tight, muscles flexed possibly varying/restricting normal blood circulation and asking for a bends hit especially if deep for a long tow.

@PfcAJ - explain your preference, please.