Okay Divers

Okay divers. Let’s play a game. Here’s some simple mathematics for you since you will not be doing any diving until early next year (except commercial divers):

You are to do a technical dive. Your maximum depth is 100 meters. Your RMV/SAC is 17 liters per minute. Your bottom time is 25 minutes.

Using a PPO2 of 1.4 for travel and 1.6 for decompression:

1) Name me your travel gas and its mix

2) At what point (depth) do you switch to your bottom gas

3) What decompression gases would you use and at what depths?

4) If you are using AL80 tanks in a twin configuration for your travel gas, and in single tank confiuration for your bottom gas, calculate how many tanks will be required to travel, and how many tanks are required to sustain the diver for that 25 minute-bottom time.