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Elements and Performance Criteria

  1. Plan for an open water dive using surface supplied air.
  2. Select and use equipment for open water dives using surface supplied air.
  3. Conduct an open water dive using surface supplied air.
  4. Act as dive tender.
  5. Evaluate diving activity.

Required Skills

Required skills

communication skills to

inform progress

interact with buddy

signal dive tender throughout dive

teamwork skills to

check assemble and fit equipment

monitor diver at all times while tendering

give recognise and respond to underwater signals

swimming skills to swim metres on the surface and at least metres underwater on surface supply air

problemsolving skills to

determine safe entries and exits

remove and replace equipment on surface

navigate underwater

adapt to changing weather and sea conditions

rescue first aid and emergency response skills appropriate to the site to enable initial response to emergencies and personal health care

Required knowledge

legislation and organisational policies and procedures to enable safe and legal conduct of all activities

minimal impact interactions and techniques to minimise negative impact on aquatic animal and plant life

selection use and maintenance of surface supplied air diving equipment characteristics and technology the advantages and disadvantages of the range of equipment and factors affecting appropriate selection of equipment to enable safe performance

weather and environmental information to interpret forecast conditions and their effect on the diving activity

sea features such as currents waves and tides and how these might impact on the dive

factors affecting buoyancy during surface supplied air diving

physics and physiology such as effects of pressure and signs symptoms prevention and treatment of common hookah diving risks such as carbon monoxide toxicity to enable safe performance in open water to a depth of metres

underwater communication systems to communicate with buddy and or tender

emergency first aid and rescue procedures appropriate to the location to ensure risk minimisation to self and group

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of the following is essential

applies relevant process to plan a safe dive and select maintain and operate surface supplied air diving equipment

demonstrates a range of safe open water dives using surface supplied air and diving techniques such as five point descents and ascents

identifies potential risks and emergency situations commonly associated with open water dives using surface supplied air and implements appropriate emergency management procedures

actively communicates with buddy and tender throughout dive and performs safe tendering of a diver by monitoring and operating surface supply air unit

evaluates and reflects on own performance to identify strengths weaknesses and areas that need improvement

Context of and specific resources for assessment

Assessment must ensure participation in open water dives using surface supplied air that are of a sufficient duration to allow the participant to demonstrate competency and consistency of performance

Assessment must also ensure access to

access to resources and information to accurately plan and select appropriate equipment for the diving activity

access to a suitable open water dive site

access to a suitable buddy and tender to participate in dive process

access to a suitable diving boat

access to surface supplied air diving equipment such as small air compressor air reserve tank portable gasoline engine or electric motor floating air hose gasoline regulator harness exposure suit hood gloves fins full face mask buoyancy compensating device in line pressure gauge bail out cylinder and weight system

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge The following examples are appropriate for this unit

observation of the planning and review process with evidence of reference to resources

oral or written questioning to assess knowledge of open water hookah diving techniques risks and emergency procedures

observation of safe participation and communication with buddy and tender throughout diving process

thirdparty reports from a supervisor detailing performance

Holistic assessment with other units relevant to the industry sector workplace and job role is recommended

Guidance information for assessment


Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Risks may include:

hypothermia

heat exhaustion

injuries

exhaustion

lost party or party member

equipment failure

carbon monoxide toxicity

panic

Decompression Illness (DCI).

Emergency procedures may include:

tired diver assist

sharing air

controlled emergency swimming ascent

unconscious diver rescue

system failure.

Relevant legislation may include:

Occupational Health and Safety

permits from land and water management authorities

environmental regulations

marine regulations.

Organisational policies and procedures may include:

occupational health and safety

risk management procedures

communication protocols

code of ethics

minimal impact codes.

Industry technical and safety criteria may include:

British Sub-Aqua Club (BSAC)

Professional Association of Diving Instructors (PADI)

SCUBA Schools International (SSI).

Contextual issues may include:

weather conditions, including times

season

transport

location

trip distance and duration

group objectives

group size

amount of fuel available, for boat and compressor

water conditions

aquatic life or activity.

Relevant sources may include:

Bureau of Meteorology

Media

land managers or agencies

coastal patrol or coastguard

volunteer marine rescue

local knowledge.

Weather and environmental information may include:

satellite images

daily and weekly forecasts

maximum and minimum temperatures

weather warnings

event warnings

synoptic charts

high and low tide predictions.

Equipment may include:

small air compressor

air reserve tank

portable gasoline engine or electric motor

floating air hose

regulator

harness

exposure suit

hoods

gloves

masks

fins

in line pressure gauge

bail out cylinder

buoyancy compensating device

weight system

complete instrumentation to monitor depth, time and direction underwater

Maintenance procedures may include:

checking buddy's equipment

checking, cleaning and or replacing filters on compressor as per manufacturer's recommendations

checking V-belt for signs of deterioration and tension

regularly running out the diver air hose to remove twists from the hose

checking the diver air hose for cuts and abrasions

checking bail out cylinder and regulator.

Five-point descent may include:

signalling the intent to descend

orientating position in the water

ensuring regulator is correctly fitted

noting the time

descending feet first, equalising every metre.

Diving techniques may include:

adjusting weight system

clearing dive mask

sending and receiving messages from the surface

changing between surface supplied air regulator and bail out regulator

removing and refitting the surface air supplied hose and belt or harness while using the bail out regulator

removing and refitting the weight system.

Five-point ascent may include:

signalling the intent to ascend

noting the time

placing right hand over the head for protection

looking up

swimming up slowly while ensuring the air hose does not get tangled.

Dive tender duties may include:

checking diver's equipment before dive

being attentive to the diver and surface conditions

responding quickly to emergencies

communicating with diver

maintaining gas levels.

Relevant aspects may include:

objectives

planning process

activity site

weather

equipment selection

clothing selection

food selection

instructional technique

assessment technique

group feedback

directing techniques

rescue techniques employed

identification of risks and emergency procedures

use of equipment and communication system

correct surface supplied air diving techniques

safe tendering of another diver.