Without a doubt, one of the most important fundamental signals in diving is the slashing motion to signal out of air during a dive. Teaching divers to recognised this and respond to it effectively are in the foundation of the PADI Open Water Diver Course and then reinforced during Rescue Exercise 4 of the PADI Rescue Dive Course.
To counteract the likelihood of this scenarios occurrence there are now performance requirements during fundamental training with students correctly estimating their gas usage, effective dive planning with agreed upon turn pressures and of course the pre-dive safety check.
These fundamentals must be the foundation of every successful dive regardless of your level of training and experience.
Depending on where you dive in the world, the conditions you are diving in and the discipline of diving you are engaging in, there will be a variety of connection types for the cylinder to the regulator.
When choosing a regulator to speak to your sales representative and your PADI pro to dic#sucss the options and these considerations before you purchase.
All gases can be narcotic and then toxic to us whilst breathed under pressure and the depths of gas narcosis in recreational diving can be very personal.
Most people rarely experience it at depths shallower than 30 metres but some people have experienced it in mus#ch shallower water and to varying results.
It is a temporary experience and can be revered by simply ascending to shallower depths if an individual wants the sensation to abate.
Are you having trouble navigating the eRDPml? Message me and I'll see if I can help.
Let's walk through this one together:
Turn on your eRDPml and select via the Mode button, Dive Planning
It will ask if this is a multiple level dive and the answer is no.
It will then ask if this is the first dive in your sequence. Answer yes.
It will then ask you to key in the depth - 28 metres - and then give you the maximum time, or No Decompression Limit, you may spend at that depth.
This is your answer.
Due to turbidity, suspended particles in the water, light diffuses erratically and can make objects appear further away than they really are.
I experienced this only a few time and usually at depths between 35-50 metres while conducting Deep Specialty and Technical training and it's truly fascinating.