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If your computer fails during any dive, multi level or not, it's good to know your NDL for the max depth you have been to.
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The eRDPml is great, especially for multi level dive planning, but for any planning. Tables are good in that they visually lay out all the max depths and NDLs for them. A general knowledge that your max time at 100 fsw on air is 20 minutes, at 80 ft is 30 mins., etc., without having to look it up anywhere, is important to have.[/QUOT E]
As the newly qualifiedl diver is advised to restrict their diving depth and not do any deco other than safety stops. I've always thought it better they dont buy a computer at that stage. It ensures they dont waste so much money, if their one of the many that give it up. I reckon the general no stop time knowledge we have and value, is more likely to be learnt by people who initially plan their dives and dive their plan without one and is less likely to be learnt by those with a computer. We often say the slice of bread always falls jam side down. Does anyone know what agency teaches new divers wearing drysuits with auto dumps to use suit inflation for buoyancy and start ascents in the horizontal with their left elbow raised to their shoulder and their wrist computer in their face? I dont know who they are but the style is common.
If your computer fails during any dive, multi level or not, it's good to know your NDL for the max depth you have been to.
I would like to point out this is the Basic Scuba forum not the Beginning Diver forum..... Many of the posts here seem more appropriate for the Beginning Divers forum.
I would like to point out this is the Basic Scuba forum not the Beginning Diver forum.