What ends your dive?

[Zept]

Following on (belatedly) from the How long is a dive? thread, here's a new question:

What usually ends your dives? Do you usually come up because you're low on air, because your nitrogen levels are climbing, because you set a limit on your bottom time*, because you're cold, because you've done what you went in to do... or for some other reason?

Zept

* Or because your dive operation does. For example, the people I dive with normally specify a maximum bottom time of 60 minutes so they know when to start worrying about people.

 

[Jarhead]

"All the Above"

Most common for me is that my (or my buddy's) tank is down to 1000 psi. Although I have ended dives due to nitrogen levels and my buddy's temperature comfort, too

Jarhead

 

[DameDykker]

I mostly end a dive when my diveplan says so. And that plan is made with my body. At shallow shore dives the plan might be very brief, as in: Untill no more air etc.

 

[junkyard_dawg]

Most of my dives thus far have ended due to mine or buddies air supply. Several due to nitrogen limits.

 

[Curly]

My regular buddy is much more of an air hog than I am. Sometimes we'll surface, and he'll be BELOW 500, while I'll still have 1200. Chalk one up for excessive running and biking.

It's real nice on those other dives when I've been teamed with someone who consumes at about the same rate -- love staying down longer.

 

[SeaHunt]

Either their's or mine.

 

[redacted]

1, 2, or 5 depending on the dive. I try to avoid operators who place a time limit. On trips (SW) it is usually 1 or 2. On local dives (FW)it is usually 5.

 

[Stone]

1) and 2).

1) on the first dive, and 2) on the next two or three dives.

Most of our dives are between 80 and 110 fsw. Unless, we have extra long surface intervals, the second and third dives are always N2 limited.

 

[sea nmf]

Almost always because I get cold. I get cold before I run out of air. If something awesome is happening before my eyes, I have been known to forget that I'm cold. (That only happened once).

I dive in a shell dry suit with polar fleece under garments and I still get cold.

 

[JDostal]

I voted other....we use them all.

Most importantly...reaching the end of our plan ends the dive.

Sometimes it's going down deep to see something cool, and we will dive until we hit ndl's and then come up. Sometimes we plan a trip out along a shore line to a particular point and then will swing back....the dive ends when you hit your starting point.

More often than not, that is what we use....out along a path, come back along a path, make somewhat of a circle. When we get back to where we started from, the dives overwith.

Diving a shipwreck it's usually air limits. When you hit 1000psi, start heading for the line and going up.

All depends on the dive, the dive site, and what we are doing I guess.