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Training agencies differ in the degree of self sufficiency training at recreational levels.
Read moreAlso, a diver may be able to maintain his depth at the bottom by lightly finning. However, finning too hard and for too long could lead to excessive CO2 production.
Read moreFew instructors, however, remember to mention at this point that dive computers or bottom timers can do all this, easier faster and safer.
Read moreAround 70% of certified divers worldwide have been certified by the single largest training agency.
Read moreUnfortunately, with some students, due to the stress of breathing underwater for the first time, good training and advice tends to go in one ear and out the other.
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