PADI Dive Tables Introduction 101

Pressure groups explained

[lindarawlins]

This is a good shortcut to keeping up with residual nitrogen, but it may be missing an important factor, which is maximum allowable bottom time for your next dive (the planning part of these tables). That is given to you on Table 3, which isn't mentioned in this presentation.

[webberyt]

This video is helpful but also problematic. It helpfully simplifies the tables by pointing out that, in Table 3 (which is not referenced), the Residual Nitrogen Time (RNT) after surface interval equals the maximum time allowed for a particular pressure group on Table 1. But this instructor computes the Total Bottom Time for a repetitive dive by adding the RNT to an already performed Actual Bottom Time (ABT). That's fine if the ABT has not exceeded the allowable no-decompression time, but the instructor does not show how to use Table 3 in advance for planning a repetitive dive. He only calculates ABT after a repetitive dive. If you haven't consulted Table 3, you don't know the time limit for ABT. So the math works out, but he has not shown how to plan a safe no-decompression repetitive dive.

[staceyatkins]

My dive instructor taught me this way. It's been a long time since, I'd forgotten it. Getting back into diving so this is very helpful.
Thanks from Australia

[raulenriquemoya]

U literally SAVED my exam question - I THANK YOU for your CLARITY

[RefugioVillegasIII]

I'm in a diving school in Seattle and this really helped me better understand this chart. Thank you for clearing that up for me!

[erinng]

the clarity and the simplicity of the way you taught this was phenomenal- in diving school and oh man I was getting taught butt backwards, thank you!!

[DaveR]

This is a GREAT video to show how to use a dive table. Watch his part 102, 103 and 104 to get more details on how to calculate dive times and no decompression limits. Exactly what everybody wants, it’s just in different videos. Love this!!!

[jasonc]

Nice simple explanation.  Got certified as a kid back in the 70's and have recently gotten back into it.  Was trying to understand the old dive tables and this brought it right back to me.  With everyone using computers seems like no one cares about dive tables anymore which is a shame.

[anthonygiampaglia]

Super helpful. I took a PADI class years ago and ended up failing this portion of the test but u explained it much better than my instructor did at the time. I think I’ll have a better chance at passing next time I go thank u!

[MorganTDaniels]

This was super helpful and helped me not fail my test. And it gave me a clearer understanding of how to use the table.

[XPBottleLP]

so awsome, i'm german, 14 years old and understood everything now.
Thank you soooo much. :D

[paulakane-hatch]

I've been diving for 2 years and just using computer and hubby's help because of my dyslexia. Your the 1st that made sense. Thank you!!

[fenderjer]

The instructor that I have sucks at teaching tables. Thank you for your clear explanation!! Very easy to follow!!

[stephanelabelle]

Quick, clear, straightforward presentation.  If you don't understand this presentation, you're out of luck ;)

[ghostoyster]

This is so helpful as a new dive instructor! I’m not the best at breaking things down but if I follow the way you did this I think my students will understand. Thanks so much!

[davidyee]

Congratulations! One of the best videos I'd seen to explain how to calculate multiple dives using the PADI Dive Tables.

[bobuber]

THIS IS INCORRECT - THE RESIDUAL NITROGEN IS CALCULATED USING TABLE 3 - NOT BY RE_USING TABLE 1!!!

[Jetdoctor]

Good refresher . The first piece of dive equipment I purchased after getting certified was a dive computer. I now have a primary and a alternate computers. You get so much more bottom time

[jimdelucia]

I wanted to take a moment to thank you for teaching me the dive tables.  Something so hard to read and understand you made it very easy. Thanks again

[julianmora]

I'm 12 years old and this was the only video that helped me understand. Thank you