Dive Rite Nitek Plus a bit too conservative?

[Christof]

I'm just trying to figure out if I was the idiot or if my new dive comp is just too conservative...

Diving air out on the east side last thursday, two tanks, 72 ft the deepest.. Blew thru tank one, came up nice and easy and stayed in the water and swapped tanks... Dropped back down and after 2nd tank was gone I ascended over about two minutes... My comp got quite miffed and wanted me to deco and promptly locked me out for 2 days when I didnt mind it...

Now I am not a pro by any means, but I have dove for years (only recently again with tanks) and I never have made deco stops when diving only 70 ft range... I used to dive with tables, and havent actually looked this up (isnt that why we buy computers?)...

Maybe I have it setup wrong and conservative? Any DiveRite owners out there that can add some thought chime right in....

Christof

[bhowell]

I would think two tanks at 72' with no surface interval would probably require a deco. Without knowing the time under water, nobody can intellegently give an answer. I probably still wouldn't be able to give an intellegent answer.

Most computers also factor in breathing rates and water temperture to determine their tables.

[Christof]

I believe total time down was 44 min on first tank and about 38 on second tank...
I'm going to get out my new tables and start memorizing them.... I'm sure they are much different than the tables I used over 20 yrs ago...
BTW, I felt just fine after the dives, but I guess that really means nothing...

[primalpete]

unless breathing nitrox you would want a decent surface interval after diving 72ft. How long was the dive?
You might wanna freshen up on your dive tables if you made that move diving on air

[Christof]

I think my biggest problem (If the comp is not simply too conservative) is the "old days" way of diving... I have done so many dives in that depth range with two tanks and slow ascent/no deco stop years ago... Just seemed like the old days and I didnt believe my comp when it told me to stop at 12 ft for 5 min....
I guess maybe thats how guys take hits... Ignorance may be bliss, but if my comp is not overly conservative I need to listen to it I guess...

[Uno Breath]

I looked at a set of tables and if you put yourself into deco just with your first tank.

[Faust]

Look through the owners guide . If I remember correctly you can change how conservative you want to be . It will make some diff. not much but some.

According to NAUI dive tables you exceeded the maximum dive time by 9 minutes on your first dive if you were diving air. Following that table you were required to do a 10 minute deco stop at 15 feet for dive 1.

[GRIM REEFER]

I would just put the thing in gauge mode. That's what I do with my Vytech

For "recreational" type spearfishing, If your breathing nitrox, You probably won't get into deco.

With a little practice, Tables are the way to go, Especially if their in your head.

This is just my opinion. I'm sure some will think I'm full of shit.

[toecheese]

Depending on your surface interval, your computer might have even thought you did one long dive.

[jfjf]

If I didn't know better I would think this was a troll post. You do two air dives with apparently zero surface interval in 70 feet of water with no clue what the tables say, and then ask if your computer is too conservative. Your dives were well past the no-deco limits, particularly if the max depth was close to the average depth.

What the heck did you buy a computer for if you are not going to follow it and have no idea what the tables will allow?

[hardcore]

Originally Posted by jfjf

If I didn't know better I would think this was a troll post. You do two air dives with apparently zero surface interval in 70 feet of water with no clue what the tables say, and then ask if your computer is too conservative. Your dives were well past the no-deco limits, particularly if the max depth was close to the average depth.

What the heck did you buy a computer for if you are not going to follow it and have no idea what the tables will allow?

If It's not a troll post I hope he has DAN insurance

[bubblejunkie]

Computer is great, I know several people that have them and aggressively dive the middlegrounds with them. I've dove 2 of them to death, which Sucks cause I just found out they arent making them anymore.

Sounds to me like your looking to get bent or wanting something besides the person responsible to blame when you do. Nothing personal it's just probably not a good idea to do to many days like that one. I dont even need to see charts to see thats not real bright.


Goodluck with your style though, sadly, told ya so never really helps, after the fact. But then what do I know I haven't been diving in a while.


Ok, Why not dive a couple of 36 mix tanks and feel way better with way better safety factor? Or am I missing something Usually am And yea I really like the faces.

[Capt.Gene]

You're just joking, right?

[Christof]

Originally Posted by jfjf

If I didn't know better I would think this was a troll post. You do two air dives with apparently zero surface interval in 70 feet of water with no clue what the tables say, and then ask if your computer is too conservative. Your dives were well past the no-deco limits, particularly if the max depth was close to the average depth.

What the heck did you buy a computer for if you are not going to follow it and have no idea what the tables will allow?

I will forgo the initial "$&#*($*$ $($ $" reaction to your post and try to be civil... First off, this is my first computer, and I am just getting back into diving air after freediving for 20 yrs... Second, I didnt lay on the bottom at 70 ft for the entire time.. I came up to 20 ft a few times to check out some small kings cruising by, etc...
Thirdly, in my old days, I did many dives similar to this one and never had a problem.. That is why I dont like dive tables.. You have to go conservative and base your calcs on what you think your depth will be, and it doesnt take into consideration the shallower parts of your dive...

I dont want to die by being stupid, and input to help me learn is much appreciated.. Smart ass comments do no one any good...