Descended quickly to 35 feet. Can you briefly go to surface then resume planned dive?

[spectrum]

If I got to 35 and noticed I didn't have my computer on my wrist? I would reach over and unclip it from the d-ring (where I put it between dives so I wouldn't splash without it) and put it on my wrist.
.

I have remained a console diver for this reason but your simple idea puts a big dent in my rationale.

Thanks,
Pete

 

[RJP]

If I got to 35 and noticed I didn't have my computer on my wrist? I would reach over and unclip it from the d-ring (where I put it between dives so I wouldn't splash without it) and put it on my wrist.

But more to your point. I would go back and get the computer.

On my first trip to Truk I got down to the wheelhouse of the San Francisco Maru and looked to check my depth. It was then that I realized that both of my computers were attached to my manifold. Wasn't easy, but I was able to reach back behind my head, and with both hands undo them and get them off.

Later that week I heard one passenger say to another "That Ray guy is pretty hardcore when it comes to practicing skills... I saw him doing valve drills at 165ft on the San Francisco dive!"

:cool2:

 

[dmoore19]

I am surprised a person would get to 35' without looking at their computer. Not saying it wouldn't happen(see above), I have a datamask, I check my pressure just before splashing along with placing my hand on my mask and regulator as I was taught in OW. Much to my dismay, I once forgot my mask, but I didn't splash until double checking the function of my backup computer and borrowing a mask so I could make the dive.

 

[DogDiver]

In almost 50 years of diving, I have forgotten:
Mask
Fins
Weight belt
Turing air on
Computer
Tables
Watch
Buddy
Just about every piece of equipment at one time or another doing recreational open water dives.
Don't let it bother you. It happens to all of us. [emoji41]

Oh, now my cave dives are another story with accurate accounting for each piece of gear. For every hour underwater in a cave, there is about 3 hours of planning and preparation.


Sent from my iPhone using Tapatalk

 

[spectrum]

jfkral,

Wow, this is a tough room today, I hope you wore your Teflon dive skin!

Going back to get it with a gentle ascent and staying conservative is probably the best advice given your limited context.

However in the interest of thinking this through there are plenty of dives where just completing the dive with an SPG alone is OK. Consider if the following 4 points are true.
1) This is a single dive for the day and your prior days don't suggest any sort of carry over nitrogen.
2) The hard bottom depth, your air supply and usage rate already make it a non deco dive.
3) You will NOT be making any dives for the next day so the lack of this dive not being in the computer will not be an issue.
4) The visibility, visible features and your skill allow you to make a gradual ascent and hold a safety stop. Remember, it is a "safety stop" and if you are good on 1,2 and 3 any reasonable facsimile to 15 feet for 3:00 will suffice, even skipping it should not be an issue.

What I describe is SOP for many shore divers, If you know the site the only real use for a depth gauge is in a free ascent, like a bearings check, otherwise you are following a known bottom. Other than depth the computer is a trivia collector. Going in without an SPG is asking for a lot of trouble especially on a reciprocal shore dive though in the days of the J valve before the SPG that was SOP. Relying on computer integrated air pressure is just wrong IMO and has no place in my scenario. On most sites a compass is probably second to the SPG in my opinion.

Obviously computers have become central to a lot of today's diving, especially repetitive diving. My point is that in a lot of situations a dive can be completed without one.

Pete

 

[Damselfish]

I would probably go get it, especially if it was my only computer, then maybe take it a little easy the rest of the dive. But since I buckle my wrist computer to my gear between dives, and have a backup computer in my console, this won't happen to me.

 

[RJP]

Obviously computers have become central to a lot of today's diving, especially repetitive diving. My point is that in a lot of situations a dive can be completed without one.

Pete

Pete - are you assuming that the diver also has a timing device along with the SPG? For most divers, the computer is depth gauge, SPG, and timer.

Going in without a computer often means going in "deaf, dumb, and blind"

As I heard someone say about PCs in the workplace "The best thing about everyone having a computer is that we can make twice as many mistakes in half the time!"

 

[abscuba]

Wasn't that long ago we didn't even have dive computers you planned your dive and used your watch. Would recommend adding to your kit a watch and an a depth gauge on your SPG. The computer may have it but should you have the day where ya brain fart and forget the computer, we all have that moment its embarrassing but it happens, or the computer does what all computers do sooner or later and screws up you have redundancy. Still go get your computer but you know your depth and time and can adjust you dive from there no issues. For assent with out a computer look for the tiny bubbles and ascend slower than them, sounds crazy but will give u a slow rate, use ur depth gauge for the safety stop easy day. Always have redundancy in your kit can make a problem merely an simple annoyance.

 

[luscioman]

Depending on what table you use the no deco time at 40 feet is 130 minutes. Since you with were a dm and on a boat you are better of staying with the group then to go back to the boat by yourself to get the computer. At the shallower depths a computer is not critical and you can easily get to the boat after dive one and use your table to plan the 2nd dive. If you didn't have a timing device goto dm's computer get their time and 10 minutes as a safety factor.

 

[Damselfish]

As with many things, the answer is often "it depends." While making a habit of bouncing up and down for whatever isn't a great idea, a careful ascent at the beginning of the occasional rec dive shouldn't be a problem. It happens. Your decision might differ based on the diving you've already done and plan to do, what other equipment you have, who you're diving with, conditions, current, lots of things.

You should certainly let your buddy and/or DM know what you're doing.