Computer and Backup Configuration for Rec Diver?

[scubadada]

I was certified in the Stone Age. We used these things called tables to calculate our NDLs. Usually, we simply used the 120 rule for single dives. I would not have missed any dives that trip.

I was certified in 1970, Navy tables and J-valve. I bought a SPG in 1972, significant improvement. I was recertified in 1997. Did not have computer until 2002, huge improvement, especially because I got nitrox certified too. In my opinion, dive computers and the common use of nitrox were the biggest improvements for my diving. Nothing else has compared.

 

[Hoag]

Why would you have been done diving for the week without a computer?

Just because I learned on tables doesn't mean I had any with me. Besides, by the 4th (or 5th) dive of the day on tables, I might as well just jump in a bathtub and I'd hit my NDL.

 

[MaxBottomtime]

Fair enough. I've only made four dives in a day a couple of times. Even three dives per day is a rarity for me unless I'm at God's Pocket. My dives there are usually limited to an hour because of the water temperature. I make one or two dives per day at home. That's what I would have done on a liveaboard without a computer.