Dive Skills Circuit - 24 Skills To Demonstrate
Any Scuba Instructor should be able to perform all scuba diving skills effortlessly and flawlessly, BUT - the main concern during the IDC and particularly the IE is that they should be performed to demonstration quality so that a student diver (or Instructor Examiner) will be able to repeat the skill without difficulty. This means Slow, Exaggerated movements are essential, and the skills will include something that you don't usually do under normal circumstances; Signals that clearly show what you are doing or about to do.
Skills Session 1
1. Equipment Assembly, Adjustment, Preparation, donning and Disassebly.
2. Pre-Dive Safety Checks
Objective: Perform the pre-dive safety check. (Confined Water Dive 2) BWRAF commonly know as Begin With Review and Friend. There are several forms of buddy check, but almost all cover five most important principles.PADI will use BWRAF, which is broken down and describe below:
- B - BCD -
Check function of BCD. Press the inflator and deflator buttons to that BCD inflates and deflates with the air. Test the oral inflator. Operate all the air dumps to check that air can be dumped quickly. Ensure that straps (shoulder straps, cummerbund) can have no slack, and be lying flat.
- W - Weights -
If a weight belt be worn, check that the belt be secure, and the strap be arranged so that it can be released with the right hand of the diver. Ensure that weights on the belt be not likely to shift during movement, and be suitable for the diver. If a weight harness is worn, or the BCD possesses an integrated-weights system, test system for adequate operation. As some BCDs have integrated weights its important to ensure that the buddy be familiar with the weight system of the diver being checked, and be able to operate them in an emergency.
- R - Releases -
Locate and check that all of your buddy's releases be properly secured and you know how to undo them in an emergency. This includes their Velcro waist band and at least two shoulder clips. Many BCDs also have a chest and stomach clip. It's a good idea to touch each clip as you check it and even count each one out loud as you do so. Remember to check the tank strap and clip. You can do this by placing one hand on the bottom of the tank and the other on the first stage regulator and trying to move the tank up and down to see if the strap moves.
- A - Air -
Open air valve on tank. Most divers then close the tank a quarter turn for an added element of safety. Breathe the air through the regulators to ensure that it be fresh and dry: impure air is extremely dangerous underwater, but can usually be recognized through an unpleasant, often oily, taste or smell. Test operation of primary and secondary regulators. Both should breathe comfortably, and not 'free-flow' when purged. Check hoses for damage. Ensure that the secondary regulator (the 'octopus') be attached in the triangle between the chin and the base of the ribs, and can be released easily: this ensures easy access for a buddy in the event of an emergency.
- F - Final Check -
Conduct a final check of the diver. Ensure that hoses are clipped to the diver neatly, and be in the correct configuration. Make sure the diver have fins and a mask, and any other accessories (cameras, reels, knife, compass, torch etc.) needed for the dive. Check that these be secured to the diver, or else placed in a spot where they can be handed down once the diver be in the water. Correct anything else that need doing.
3. Deep Water Entry
Objective: Demonstrate appropriate deep-water entry(s).
4. Proper Weighting Bouyancy Check
Objective: Adjust for proper weighing, which is defined as floating at the surface with an empty BCD while holding a normal breath.
5. Snorkel and Regulator Exchange
Objective; Exchange snorkel for regulator and regulator for snorkel repeatedly while at the surface without lifting the face from the water. (confined water 2)
Skills Session 2
Objective: Demonstrate a descent using the appropriate 5 step method (SORTED)
- Signal Buddy
- Orientate - Look around, get your bearings to the boat or shore.
- Regulator - Exchange your snorkel for your regulator.
- Time - Note time / Start timer even / especially if using a dive computer.
- Equalise while Descending - Lift low pressure inflator hose and deflate your BCD, Equalize while descending, looking down.
7. Regulator Clearing
Objective: Clear a regulator while underwater using both the exhalation and purge-button methods and resume breathing from it. Commonly the two methods demonstrated is the arm sweep method and the first stage grab method where the hose is traced to the regulator (confined water 1)
8. Mask Removal and Replacement + Clearing
Objective: Completely remove, replace and clear the mask of water while underwater. (confined water 2)
This demonstration uses the thumb to push the top of the mask to the head when purging the water from the mask, we believe this could sometimes be problematic as students 'may' pull the mask away from the face causing water to flood back in so an alternative is to press the middle top of the mask or to press the two top corners of the mask against the face.
9. Air Depletion / Alternative Air Source Combined
Objective: Respond to air depletion by signaling out of air, then securing and breathing from an alternative air source (AAS) supplied by a buddy for at least 1 minute while stationary. (confined water 3)
10. Alternative Air Source Assisted Ascent
Objective: Respond to simulated air depletion by signaling out of air, then securing and breathing from an alternative air source (AAS) supplied by a buddy, swimto the surface ans gain positive buoyancy for both divers.
Skills Session 3
11. Free Flow Regulator Breathing
Objective: To breath effectively from a free flowing regulator for not less than 30 seconds.(confined water 3)
12. Fin Pivots - Oral and Low Pressure Inflation methods
Objective - Independently establish neutral buoyancy underwater by pivoting on the fin tips or where appropriate another point of Контакты. This should be achieved using both oral and low-pressure inflator. (confined water 3)
Objective : Demonstrate an ascent using the appropriate five step method. (STARS) - Confined water 1
- Signal buddy — Wait until instructor signals
- Time - Note time
- Arms Position - One hand over head, other on BCD control
- Rotate - Looking up and atround as you ascend
- Swim - Swim Slowly to the Surface mainting neutral bouyancy.
14. CESA - Controlled Emergency Swimming Ascent
Objective: Simulate a controlled emergency swimming ascent (CESA) by swimming horizontally underwater for at least 9 metres/30 feet while continuously exhaling by emitting a continuous sound. (confined water 3)
15. Neutral Buoyancy - Hovering
Using buoyancy control only, hover without kicking or sculling for at least 30 seconds (confined water 4)
16. No Mask Swim
Objective: Swim underwater without a mask for a distance of not less than 15 metres/50 feet, and replace and clear the mask underwater. (confined water 4)
Skills Session 4
17. Weight belt removal and Replacement (underwater)
Remove, replace, adjust and secure weight belt or weight system on the bottom in water too deep to stand up in. (confined water 5)
18. Scuba Unit Removal and replacement (underwater)
Remove, replace, adjust and secure the scuba unit and weights at the surface, with minimal assistance, in water too deep to stand up in. (Confined Water 5)
19. Scuba Unit Removal and replacement (surface)
Remove, replace, adjust and secure the scuba unit on the bottom, with minimal assistance, in water too deep to stand up in.. (confined water 5)
20. Weight Removal and Replacement (surface)
Objective: Remove, Replace, adjust and secure the weight at the surface, with minimal assistance in water that is too deep to stand up in.
Skills Session 5
21. Vertical Head First Skin Dive
22. Swim At Least 15 Meters Underwater On A Single Breath While Skin diving
23. Snorkel Clearing Using Blast Method (After ascending from skin dive)
24. Snorkel Clearing Using Displacement Method (While ascending from skin dive)
All of these skills are an integral part not only of the IDC and IE, but of every dive course you will teach. Don't wait for the IDC to re-learn them, perfect them on any dive where you have the opportunity to safely practice the skills before your IDC.The Aqua Vision Dive Crew