OPEN WATER DIVER1WelcomeDive Center: I Dive Tec Rec Centers PlcInstructor: Andy Varoshiotis
OPEN WATER DIVER2WELCOMEPERSONAL INTRODUCTIONPAPERWORKCourse Overview• Course Materials• Academic Sessions• Pool Sessions• Open Water Dives• Course Certification
OPEN WATER DIVER3TO BECOME ACOMFORTABLEAND CONFIDENT DIVERIT TAKESFOUR INGREDIENTS:• Proper Knowledge• Proper Skills• Proper Equipment• Proper Experience
OPEN WATER DIVER4LOOK FOR THESE ICONS:• Pearl• Continuing Education• Environment
OPEN WATER DIVER5SECTION 1YOUR DIVING EQUIPMENT
OPEN WATER DIVER6SECTION 1YOUR DIVING EQUIPMENTOBJECTIVESBe able to:1. Identify the 7 Sub-Systems of the Total Diving System.2. Understand how each piece of equipment plays an importantrole in diver comfort, confidence, and safety.3. Learn how to choose and fit each component of the TotalDiving System.4. Recognize the benefits of owning a personal Total DivingSystem.
OPEN WATER DIVER7YOUR DIVING EQUIPMENTThe Total Diving System• Snorkeling System• Exposure System• Air Delivery System• Information System• Total Divelog System• Buoyancy Control System• Specialty Training & AccessorySystemMaintaining theTotal Diving System
OPEN WATER DIVER8THE SNORKELING SYSTEMMask• Purpose• Types• Optical Lenses• Features• FittingFins & Footwear• Diving Fin• Snorkeling Fin• FittingSnorkel• Purge• No Purge• FeaturesSnorkeling SystemBagThe snorkeling equipment is the base of your Total Diving System!
OPEN WATER DIVER9THE EXPOSURE SYSTEMWarm Water Dive SkinsWet Suits• Choice• Features• FitDry SuitsSSI Dry Suit Diving Specialty Program
OPEN WATER DIVER10THE AIR DELIVERY SYSTEMS.C.U.B.A.Components• Cylinder• 1st Stage Regulator• 2nd Stage RegulatorCylinder• Choosing a Cylinder• Cylinder Valves• Cylinder Features
OPEN WATER DIVER11THE AIR DELIVERY SYSTEMRegulator• Choice• 1st Stage• 2nd StageAlternate Air Sources• Alternate 2nd Stage• Inflator-Integrated Air Source• Redundant Breathing SystemIt is recommended to have a high-quality regulator, especiallywhen diving in cold water!
OPEN WATER DIVER12THE INFORMATION SYSTEMInstruments• Dive Computer• Submersible Pressure Gauge (SPG)• Depth Gauge• Timing Device• Compass• ThermometerConfiguration• System 1: Air Integrated• Computer, Air• System 2: Dive Computer,• Computer, Analog SPG, Compass• System 3: Analog ConsoleUse the Equipment Service Program, which will help youremember scheduled services!
OPEN WATER DIVER13THE TOTAL DIVELOG SYSTEMThe DiveLog as a Training ToolThe DiveLog as a Recognition Tool
OPEN WATER DIVER14THE BUOYANCY CONTROL SYSTEMBuoyancy Compensator (BC)• Purpose• Archimedes’ PrincipleFeatures• Inflators• Deflators• Inflator-Integrated Air Source• Integrated Weight System• Lift• Other FeaturesNeutral Buoyancy is important for a comfortable dive and is thebest possible environmental protection!
OPEN WATER DIVER15Proper Weighting Technique• Weight Belts• Choosing Your Weighting• Proper Weighting TechniqueTHE BUOYANCY CONTROL SYSTEMSSI Perfect Buoyancy Specialty Program
OPEN WATER DIVER16THE SPECIALTY TRAININGAND ACCESSORY SYSTEMDiver’s Luggage• Size• Durable & Versatile• Locking Device• WheelsFlags & Floats• Recreational Diver’s Flag• Alpha Flag (International)SSI Boat Diving Specialty Program
OPEN WATER DIVER17THE SPECIALTY TRAININGAND ACCESSORY SYSTEMSignal Devices• Whistles & Alarms• Signal Flares• Inflatable Surface Marker• Underwater Audible DevicesSave-a-Dive SystemSSI Equipment Techniques Specialty Program
OPEN WATER DIVER18THE SPECIALTY TRAININGAND ACCESSORY SYSTEMUnderwater Lights• Battery PoweredUnderwater Flashlight• Chemical Glow Lights• Battery Powered GlowLightsDiver’s ToolSSI Night / Limited Visibility Specialty Program
OPEN WATER DIVER19MAINTAINING YOUR TOTAL DIVING SYSTEMBuoyancy Control System• Cleaning• Storage• MaintenanceRegulator• Cleaning• Storage• MaintenanceInformation System• Cleaning• Storage• Maintenance
OPEN WATER DIVER20MAINTAINING YOURTOTAL DIVING SYSTEMCylinder• Cleaning• Storage• Preventing Damage to Cylinder• VIP (Visual Inspection Program)• Hydrostatic TestingExposure SuitsEquipment Consultation
OPEN WATER DIVER21DIAMOND DIALOGUE 1The SSI Training Philosophy isillustrated through the SSI DiverDiamond.Discuss the four sides of the SSI DiverDiamond and how each side relates tothe others.Your Total Diving System is all theequipment you need to go diving, aswell as the additional equipment youmay want to have for added enjoyment.
OPEN WATER DIVER22WORKSHOP 1Let’s go to the “interactiveclassroom”, and identify and discussthe seven subsystems that make upyour Total Diving System and howthey relate to each other.
OPEN WATER DIVER23SECTION 2USING YOUR DIVING EQUIPMENT
OPEN WATER DIVER24SECTION 2USING YOUR DIVING EQUIPMENTOBJECTIVES1. Understand basic snorkeling and scuba diving skills asthey relate to your equipment, including:• Dressing• Putting on Your Equipment• Using Your Equipment2. Learn proper procedures for:• Entering the Water• Descending & Equalizing Pressure• Establishing & Maintaining Neutral Buoyancy• Ascending• Safety Stops• Exiting the Water
OPEN WATER DIVER25THE SNORKELING SYSTEMPUTTING ON THE EQUIPMENTMaskSnorkelFinsExposure SuitPay attention to sun protection and sufficient liquid absorption!
OPEN WATER DIVER26THE SNORKELING SYSTEMENTERING THE WATERPre-Dive CheckTypes of Entries• Controlled Seated Entry• Step-in Entry• Feet-First Jumping Entry• Beach Entry• Boat EntryAlways choose the safest and easiest method, which isappropriate for the dive spot.
OPEN WATER DIVER27THE SNORKELING SYSTEMUSING THE DIVING EQUIPMENTUsing the Snorkel• Breathing• Snorkel ClearingUsing the Fins• Fin Safety• Fin Power• Fin KicksUsing the BC• On Surface• Deflation• Bobbing Method
OPEN WATER DIVER28THE SNORKELING SYSTEMSURFACE DIVESHead-first DiveFeet-first DiveOne-up – One-down
OPEN WATER DIVER29THE SNORKELING SYSTEMEQUALIZING PRESSUREEqualizing Mask PressureEqualizing Ear PressureEqualizing Sinus Pressure
OPEN WATER DIVER30THE SNORKELING SYSTEMEXITSTypes of ExitsSafety TipsAlways choose the safest and easiest methodwhich is appropriate for the dive spot.
OPEN WATER DIVER31Assembling the Scuba UnitPutting on the Scuba Unit• Sitting position• Standing position – Buddy Lift• In-waterNever leave your scuba unit standing! Always make sure that itis secured!SCUBA DIVINGDIVING WITH THE SCUBA UNIT
OPEN WATER DIVER32SCUBA DIVINGDIVING WITH THE SCUBA UNITPre-Dive Check• Visual Check• Active CheckEntry Procedures• Techniques• Safety aspectsAlways choose the safest and easiest method, which isappropriate for the dive spot.
OPEN WATER DIVER33The Mask• Cleaning• ClearingUsing the 2nd Stage• Breathing• Clearing the 2nd Stage• Retrieving the 2nd StageSurface Procedures• Using the BC• Snorkel Use in ScubaSCUBA DIVINGDIVING WITH THE SCUBA UNIT
OPEN WATER DIVER34DescendingNeutral Buoyancy DuringYour DiveAscending & Surfacing• Procedures• Rate of Ascent• Dive Lines• Safety Stop• Surface ProceduresScuba Exits• Boat Exits• Shore ExitsSCUBA DIVINGDIVING WITH THE SCUBA UNIT
OPEN WATER DIVER35DIAMOND DIALOGUE 2In Workshop 1, we discussed the sevensubsystems that make up your TotalDiving System.The assembly and preparation of thesubsystems is essential for your comfort,safety, and enjoyment underwater.
OPEN WATER DIVER36WORKSHOP 2Let’s assemble your Total Diving System, asyou would in preparation for a dive.Throughout a dive you will be exposed toincreasing and decreasing pressure.Proper use of your Total Diving System willenable you to manage the changes inpressure.Let’s discuss how your Total Diving Systemhelps you manage the effects of increasingpressure.
OPEN WATER DIVER37SECTION 3YOUR BODY AND THEUNDERWATER WORLD
OPEN WATER DIVER38SECTION 3YOUR BODY AND THE UNDERWATER WORLDOBJECTIVES1. Learn the effects of increasing pressure on your body and TotalDiving System.2. Understand how breathing compressed air under pressureaffects your body.3. Study partial pressures and how it applies to divers.4. Learn how to perform proper ascent procedures under normaland emergency situations.5. Learn the causes and prevention of the diving maladies, e.g. –Nitrogen Narcosis, Air Embolism, and Decompression Sickness.
OPEN WATER DIVER39EFFECTS OF INCREASING PRESSUREPressure• Definition• Pressure & DivingAtmospheric PressureAmbient Pressure• Water is Heavier Than Air• Deeper = More Pressure
OPEN WATER DIVER40EFFECTS OF INCREASING PRESSURE
OPEN WATER DIVER41EFFECTS OF INCREASING PRESSUREEqualizing Pressure• How does pressure affectthe human body?• Boyle’s Law• Ears Underwater• Sinuses• Equipment• LungsOther Considerations• Reverse Block• Mask Squeeze
OPEN WATER DIVER42BREATHING UNDERWATERDiving FitnessCardiovascular Fitness• Importance of Good Circulation• Improve Circulation With ExerciseHealthy Lungs• Healthy Lungs are Important• Lung Problems
OPEN WATER DIVER43BREATHING UNDERWATERBreathing Control = Stress Control• Breathing Pattern• Anxiety• To Control Anxiety• Important Rule While Diving:Never hold your breath!
OPEN WATER DIVER44THE FUNCTION OF THE LUNGSWhat are Lungs?• Function• AssemblyGas Exchange• Carbon Dioxide (CO2)• Nitrogen• Carbon Dioxide Excess
OPEN WATER DIVER45EFFECTS OF BREATHINGCOMPRESSED AIR – PARTIAL PRESSUREBreathing at the Surface• Air is a Mixture of Gases• Dalton’s Law of Partial Pressure• Function of Oxygen & Nitrogen in BodyBreathing Air Underwater• At Depth• Henry’s Law
OPEN WATER DIVER46EFFECTS OF BREATHINGCOMPRESSED AIR – PARTIAL PRESSURE
OPEN WATER DIVER47EFFECTS OF BREATHINGCOMPRESSED AIR – PARTIAL PRESSURENitrogen Narcosis• Cause• Symptoms• Treatment• Prevention• Recreational Diving LimitOpen Water Divers are trained for 60 foot / 18 meter dives!
OPEN WATER DIVER48ADAPTING TO THEUNDERWATER WORLDBuoyancy• Positive Buoyancy• Negative Buoyancy• Neutral BuoyancyProper Weighting• Purpose• Proper Weighting TechniquePerfect buoyancy control is the best environmental protection!
OPEN WATER DIVER49ADAPTING TO THEUNDERWATER WORLDControlling Buoyancy Underwater• On Descent• At Depth• Neutral Buoyancy• Reasons for Having GoodBuoyancy ControlVision• Refraction• Limited Visibility (Turbid Water)SSI Perfect Buoyancy Specialty Program
OPEN WATER DIVER50ADAPTING TO THEUNDERWATER WORLDCommunication• Problems With CommunicationUnderwater• Communication TechniquesExposure – Protection fromthe Environment• Body Heat Loss• Prevention
OPEN WATER DIVER51EFFECTS OF DECREASING PRESSUREDecreasing Pressure• Decreasing Pressure Occurswhen Ascending to the Surface• Prevention of ProblemsNever hold your breath! Breathe normally all the time!
OPEN WATER DIVER52OVEREXPANSION INJURIESAir EmbolismMediastinal EmphysemaSubcutaneous EmphysemaPneumothoraxSSI Diver Stress & Rescue Specialty Program
OPEN WATER DIVER53EFFECTS OF DECREASING PRESSUREDecompression Sickness• Definition / Causes• DCS Symptoms• First Aid & Treatment• PreventionFirst Aid for Divers• Asphyxiation• Be Prepared• First Aid• TreatmentDAN Emergency Training• DAN Basic Life Support• DAN Oxygen First Aidfor Scuba Diving• DAN AutomatedExternal Defibrillation
OPEN WATER DIVER54ASCENT PROCEDURESNormal Ascents• Purpose• Key PointsAir Sharing• Purpose• TermsPerform a Safety Stop after each dive!
OPEN WATER DIVER55ASCENT PROCEDURESAlternate Air Sharing Ascents• Key Points• Equipment DeterminesProceduresEmergency Ascents• Swimming Ascent• Buoyancy Ascent• Key Safety Points
OPEN WATER DIVER56DIAMOND DIALOGUE 3As a diver, understanding howchanges in pressure effect your bodyand how we compensate for thesechanges is vital for yoursafety, comfort, and enjoyment.
OPEN WATER DIVER57WORKSHOP 3Avoiding the effects of squeeze andoverexpansion is easy by breathingnormally and following proper ascent anddescent procedures. Developing good habitswith these skills begins with your confinedand open water sessions.Let’s simulate a virtual dive in the“interactive classroom” to include:• Entry• Descent• Neutral Buoyancy• Ascent• Exit
OPEN WATER DIVER58SECTION 4PLANNING AND EXCECUTINGYOUR DIVES
OPEN WATER DIVER59SECTION 4PLANNING AND EXECUTING YOUR DIVEOBJECTIVES1. Learn the benefits of owning and using a dive computer.2. Discover common dive computer features and functions.3. Study how other factors can affect nitrogen absorption andelimination, including decompression.4. Learn the value of diving with a buddy and buddy teamfunctioning.5. Learn how to execute your dive.
OPEN WATER DIVER60DIVE PLANNINGDecompression Theory Terminology• Depth• Bottom Time (BT)• Residual Nitrogen• Surface Interval (SI)• Repetitive Dive• No-Decompression Limits• No-Decompression Dive• Decompression Dive
OPEN WATER DIVER61USING DIVE COMPUTERSFOR REPETITIVE DIVINGBenefits of ComputersCommon Computer Features• Planning Mode• Dive Mode• DiveLog Mode• Time to Fly• Alarms• Display Lighting• Units• Personal Computer Integration• Advanced FeaturesSSI recommends the use of Dive Computers!
OPEN WATER DIVER62USING DIVE COMPUTERSFOR REPETITIVE DIVINGComputer Guidelines you should follow:1. Always have your own dive computer. Do not share a computer withyour buddy.2. Check the computer’s battery life before diving.3. Adhere to the limits of the computer. Make sure all safety warningsare observed.4. Follow the ascent display or audible warning to stay within the properascent rate for the computer.5. Remain within your limits and be conservative.6. Plan and execute your dive carefully and have a contingency plan, ifyour computer fails.SSI recommends to always perform Safe Diving Practices!
OPEN WATER DIVER63OTHER FACTORS AFFECTINGNITROGEN ABSORPTION ANDDECOMPRESSIONPhysical FactorsAltitudeFlying after Diving• Wait generally 24 hoursSSI Altitude Diving Specialty Program
OPEN WATER DIVER64EXECUTING YOUR DIVEPre-Dive Briefingand Buddy Team Functioning• Buddy System• Solo Diving• Pre-Dive Briefing• Dive PlanningPlan your dive and dive your plan!
OPEN WATER DIVER65AVOIDING PANIC SITUATIONSCauses of Panic• Breathing Distress• Mistaking Fiction for Reality• Environmental Conditions• Equipment• Comfort & AbilityIdentifying the Panic Response• Ways to Identify Panic Responses in Divers• If you observe signs of panic in your buddy at depth• If you observe signs of panic in your buddy on the surfacePrevention of Panic
OPEN WATER DIVER66EXECUTING YOUR DIVEReview of Dive ProceduresPost Dive Briefing(Logging your Dive)• Record for future dive planning• Record of equipment uses• Record of training, loggeddives, and memories
OPEN WATER DIVER67DIAMOND DIALOGUE 4A diver, while breathing compressedair absorbs nitrogen. The deeper wego, the longer we stay, and the moredives we make will effect how muchnitrogen we absorb. Our rate ofascent back to the surface is directlyrelated to this level of nitrogen.
OPEN WATER DIVER68WORKSHOP 4Let’s discuss the most important subsystemof the Total Diving System which enables youto manage your rate of ascent at 30 feet perminute including a safety stop of 3-5 minutesat 15 feet. Executing and analyzing your diveare important aspects of dive planning.The Total DiveLog System will enable youto plan, execute, analyze, and rememberyour diving experiences.Review your Total DiveLog:• Levels of Certification and Recognition• Personal Information and Training Record• Levels 1-5 DiveLog Pages• Specialty Diver Record• Scuba Skills Update Record• Equipment Record
OPEN WATER DIVER69SECTION 5YOUR UNDERWATER WORLD
OPEN WATER DIVER70SECTION 5YOUR UNDERWATER WORLDOBJECTIVES1. Understand the fundamentals of wave, tide, and current action.2. Explain how waves, tides, and currents affect divers.3. Learn proper diving techniques as they relate to surge and surf.4. Discover how coral reefs play an important role in theenvironment.5. Identify many species of marine life including potentiallyhazardous marine life.
OPEN WATER DIVER71THE OCEAN ENVIRONMENTSalt Water• Salinity• PhotosynthesisFresh Water• Evaporation• Freezing• Ice Melt
OPEN WATER DIVER72WATER MOVEMENT AND DIVINGTidal Currents• Flood Current• Ebb Current• Slack Time• Diving in Tidal CurrentsAlways start the dive against the current when diving locally!Do not fight against a strong current for a long period of time!Tides• Causes• High and Low Tide
OPEN WATER DIVER73WATER MOVEMENT AND DIVINGOcean CurrentsThermoclines• Definition• Freshwater Diving• Dressing for ThermoclinesWaves• Causes• Size of Waves• Wavelength, Trough & Wave Energy• Confused Sea
OPEN WATER DIVER74Entering and Exiting whendiving from a Boat• Procedures• Avoiding SeasicknessSSI Boat Diving Specialty ProgramWATER MOVEMENT AND DIVING
OPEN WATER DIVER75WATER MOVEMENT AND DIVINGSurf and Surge• Surf• Surf Zone• Types of Breakers• SurgeEntering and Exiting SurfSSI Waves, Tides & Currents Specialty Program
OPEN WATER DIVER76WATER MOVEMENT AND DIVINGLocalized Currents• Longshore Currents• Rip CurrentsDiving with Localized Currents• Rip Current• Boat Diving in Currents• Drift Diving• Safety Stops in Currents• If caught in Current
OPEN WATER DIVER77UNDERWATER LIFEThe Coral Reef• Development• Hard Corals• Soft CoralsWormsMollusks• Gastropod• Bi-valves• CephalopodsSSI ECOlogical Diver Program
OPEN WATER DIVER78CrustaceansEchinodermsVertebratesTropical Reef FishUNDERWATER LIFE
OPEN WATER DIVER79UNDERWATER LIFEPotentially HarmfulMarine Life• Basic rules• Sculpin, ScorpionFish, Stone Fish• Eels• Stinging Animals• Sea Urchin• Sharks• BarracudasSSI Shark Diving Specialty Program
OPEN WATER DIVER80UNDERWATER LIFECold Water MarineEnvironments• Kelp• Cold Water Formations• Artificial ReefsFreshwater Environments• Freshwater Environments• Freshwater Diving• Freshwater Life
OPEN WATER DIVER81DIAMOND DIALOGUE 5The more you know about theaquatic world, the better diver you willbe. The basic knowledge andpractical information about watermovement and aquatic life willenhance your diving experience.
OPEN WATER DIVER82WORKSHOP 5Discuss the following considerations about yourlocal dive sites:• Entry Techniques• Exit Techniques• Aquatic Life• Special Equipment ConsiderationsPerhaps the most critical skill to master as acompetent scuba diver is navigation. Divers must beable to follow a planned set of directions underwaterand reach the planned exit point accurately:• Discuss natural navigation• Discuss how a compass works• Conduct a reciprocal compass program• Discuss the SSI Navigation Specialty Program
OPEN WATER DIVER83SECTION 6YOUR SCUBA DIVINGEXPERIENCES AND BEYOND
OPEN WATER DIVER84SECTION 6YOUR SCUBA DIVING EXPERIENCESAND BEYONDOBJECTIVES1. Learn the reasons you should complete referrals through theUniversal Referral Network.2. Learn how Continuing Education will improve scuba skills.3. Understand why diving experience is required for SSIContinuing Education.4. Learn why Continuing Education cards are important.
OPEN WATER DIVER85YOUR SCUBA DIVING EXPERIENCESAND BEYONDYour Open Water Dives• With your SSI Dive Center• By ReferralCollege Credit forScuba Courses
OPEN WATER DIVER86YOUR DIVING ADVENTURESFinding Dive BuddiesJoining a Dive ClubDiving at HomeDiving on VacationGetting the Family Involved• Scuba Rangers• Junior Open Water DiverStay ProficientKeep Learning
OPEN WATER DIVER87Specialty Course ProgramsContinuing Education Ratings• Specialty Diver(2 Specialty Courses + 12 Logged Dives)• Advanced Open Water Diver(4 Specialty Courses + 24 Logged Dives)• Master Diver(4 Specialty Courses + Diver Stress &Rescue + 50 Logged Dives)Record KeepingFrequently Asked QuestionsBEYOND OPEN WATER DIVER
OPEN WATER DIVER88BEYOND OPEN WATER DIVERSharing Your Adventure• SSI Dive Guide• SSI Divemaster• SSI Dive Control Specialist• SSI Open Water Instructor• SSI Advanced Open Water Instructor• SSI Dive Control Specialist Instructor• Master Instructor• SSI Instructor TrainerCheck with your SSI Dive Center foryour personal career options!
OPEN WATER DIVER89BEYOND OPEN WATER DIVERLifetime of Adventure• Levels of Experience• Levels of Recognition• Century Diver• Gold500 Diver• Platinum1000 Diver• Platinum5000 DiverKeep Scuba Diving Strong
OPEN WATER DIVER90RECOMMENDED DEPTH LIMITSIN RECREATIONAL DIVINGScuba Diver – 40 ft / 12 mJunior Scuba Diver – 40 ft / 12 m(Diving only with Dive Leader!)Open Water Diver – 60 ft / 18 mJunior Open Water Diver Age: 15 years – 60 ft / 18 mJunior Open Water Diver Age: 11 years – 40 ft / 12 m(After certification without further training)Advanced Adventurer – 100 ft / 30 m(If a Deep Dive was conducted within the program!)Junior Advanced Adventurer – 60 ft / 18 mDeep Diving Specialty Program – 130 ft / 40 m
OPEN WATER DIVER91DIAMOND DIALOG 6When you become a certified scuba diver,your adventure begins!Combining proper knowledge, skills,equipment and experience will greatlyenhance your proficiency as a diver.SSI’s Continuing Education coursesoffer you a pathway to becominga safer, more competent diver.
OPEN WATER DIVER92DIAMOND WORKSHOP 6Discuss:1.The fundamentals of wave, tide, andcurrent action.2.How waves, tides, and currents affectdivers.3.Proper diving techniques as they relate tosurge and surf.4.How coral reefs play an important role inthe environment.5.Identify many species of marine lifeincluding potentially hazardous marine life.
OPEN WATER DIVER93Open WaterDiverCONGRATULATIONS!
OPEN WATER DIVER94APPENDIXPLANNING AND EXECUTINGYOUR DIVE – DIVE TABLES
OPEN WATER DIVER95DIVE PLANNINGThe Dive ProfileDive Tables and Terminology• Bottom Time (BT)• Decompression Dive• Depth• Doppler Limits• Group Designation Letter• No-Decompression Dive• Repetitive Dive• Residual Time (RT)• Surface Interval• Total Time (TT)
OPEN WATER DIVER96Table 1:The No-DecompressionLimits Table• Purpose• Understanding• Key Points• ExamplesDIVE PLANNING34
OPEN WATER DIVER97Table 2:The Surface Interval Table• Purpose• Understanding• Key Points• ExamplesDIVE PLANNING
OPEN WATER DIVER98Table 3:The Residual Nitrogen TimesTable• Purpose• Understanding• Key Points• ExamplesDIVE PLANNING
OPEN WATER DIVER99Repetitive Divesand the Dive Profile:• Dive Profile• Understanding• General RulesNote:• Safety Stop3-5 Minutes at 15 ft (5m) Depth• Maximum Ascent Rate30ft (9m) per Minute• No-Decompression DiveDIVE PLANNING
OPEN WATER DIVER1001st Dive(52ft/16m for 36 min.)OWD-Manual Appendix2nd Dive(40 ft/12m for 40 min.)OWD-Manual AppendixEXAMPLE:G 1 30 E5203636I 1 30 F40494089E
OPEN WATER DIVER1013rd Dive(20ft/6m)OWD-Manual AppendixPlan another series of 3 dives!EXAMPLE:20159F