Thursday, July 3, 2014

Open Water Diving Course - How to Assemble the Equipment

Like I said, Feeder and I went for our PADI license in Lang Tengah few weeks ago. It was a four-day theory and practical lessons. Since we do not dive like once a month - in fact, hardly once a year - I thought I'd prepare some notes (before I forget) about things that I've learnt during the four-day-course. So that I can revisit those skills before my next dive. *wink*

Refer to above video from YouTube.

Step 1: Slide the BCD (buoyancy control device) into the oxygen tank from the top. Make sure the O-ring on the tank is facing the BCD.

Step 2: Use one hand to hold the BCD in place, the other tighten the belt. Make sure the O-ring is just above the level of the BCD neck area. If the position of the tank is too high, it may knock the back of your head. Try lifting and shaking the BCD to check if the tank is properly secured.

Step 3: Align the O-ring with the first stage opening. When properly positioned, tighten the yoke screw with three fingers. This is to keep you from over-tightening the screw. Check that the BCD hose and the pressure gauge is positioned on your left, the second stage and the alternate air source on your right.

Step 4: Attach the BCD hose to the BCD inflator. You should be able to hear a click when it's properly connected.

Step 5: While turning on the air valve, place the pressure gauge face down or away from you. This is to avoid injury in case the glass burst due to leakage (highly unlikely). Turn the valve slowly at first. When it is pressurized, turn it fully open, and then close it by turning it one time, using three fingers.

Step 6: Check the pressure gauge. It should read about 200 barg. Test the regulator by pressing the purge button. Inflate the BCD by pressing the red button on the low pressure inflator and then release the air.
Note: During diving, low on air is considered at 50 barg or lower.