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Monday night was another classroom night, we talked more and more about safety and medical problems. First was buoyancy, issues with decent such as squeeze, ear clearing again, and other rarer problems. Talked about using thirds while diving: 1/3 down, 1/3 up, 1/3 reserve or emergency. Went over problems with ascent like lung over expansion, decompression sickness, touched a bit on nitrox systems. Had a little lesson on physics and atmospheric pressure. Talked also about regulators and safety.

Wednesday night (last night) we started in the pool room with a talk on rescue safety and tired divers. How to approach them and how to help them in the three main situations. Conscious and tired/disoriented, unconscious and breathing, unconscious and not breathing. After that we were shown how the vests should be worn, how to adjust them, and where the weight releases are. Then we paired up and practiced each on our buddies and vice verse. Then we went over cylinder safety, how dust caps are used, how to carry, not to leave it vertical unattended, and lastly how both buddies work on 1 set of gear at a time.

One of the helpers mentioned a very important and interesting tip. When you receive a rental cylinder before you take off the dust cap, to lift is just a little bit and to smell. If you smell sulfur or anything organic it can be a sign of a dirty cylinder, and not to use it. He also mentioned that there could be oil inside the cylinder and once you breath that in your lungs it doesn't come out and is bad news...

We then all sat on the steps and and breathed through the regulators for the first time and our instructor went over hand signals and we descended one by one with the instructor, until we were all down on the bottom. I was a fish for 4 minutes!!! :D It was awesome! We then surfaced with our buddies rinsed everything off and headed home. Wish I had pictures for you guys but my iphone isn't waterproof. :/

Until next time :)
 
Monday night was another classroom night, we talked more and more about safety and medical problems. First was buoyancy, issues with decent such as squeeze, ear clearing again, and other rarer problems. Talked about using thirds while diving: 1/3 down, 1/3 up, 1/3 reserve or emergency. Went over problems with ascent like lung over expansion, decompression sickness, touched a bit on nitrox systems. Had a little lesson on physics and atmospheric pressure. Talked also about regulators and safety.

Wednesday night (last night) we started in the pool room with a talk on rescue safety and tired divers. How to approach them and how to help them in the three main situations. Conscious and tired/disoriented, unconscious and breathing, unconscious and not breathing. After that we were shown how the vests should be worn, how to adjust them, and where the weight releases are. Then we paired up and practiced each on our buddies and vice verse. Then we went over cylinder safety, how dust caps are used, how to carry, not to leave it vertical unattended, and lastly how both buddies work on 1 set of gear at a time.

One of the helpers mentioned a very important and interesting tip. When you receive a rental cylinder before you take off the dust cap, to lift is just a little bit and to smell. If you smell sulfur or anything organic it can be a sign of a dirty cylinder, and not to use it. He also mentioned that there could be oil inside the cylinder and once you breath that in your lungs it doesn't come out and is bad news...

We then all sat on the steps and and breathed through the regulators for the first time and our instructor went over hand signals and we descended one by one with the instructor, until we were all down on the bottom. I was a fish for 4 minutes!!! :D It was awesome! We then surfaced with our buddies rinsed everything off and headed home. Wish I had pictures for you guys but my iphone isn't waterproof. :/

Until next time :)

GREAT progress report, Ike!!!! You will be certified before you know it!

Adam
 
What's the rule of thirds/this about?

rule of thirds is a method of gas planning typically used in overhead environments where it is critical that you have enough gas to return to your starting point. In this method, you would use 1/3 of your usable gas to go out, then turn around and use 1/3 to get back, leaving 1/3 for any problems you might encounter.

Another method is the rule of halves, where you use 1/2 of your usable gas to go out, and the other 1/2 to return, and in an emergency you surface where you are.
 
https://www.shearwater.com/products/swift/

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