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Cards In This Set
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Once you have completed the course and your open water certification dives, you will be qualified to dive in conditions similar to those in which you did your open water certification dives
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With every dive there is always a chance that you will need to exert yourself greatly. At times, diving can be very strenuous. Particullaly in cold water, stong currents, surf
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The best way to stay fit wfor diving is to dive regularly, or swim with mask snorkel and fin
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Substances such as alcohol, marijuana, and coke should never be used before diving
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If you are ill and do not feel well enough to dive without taking a drug you should not dive even if you are fine with meds.
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Because you wear most pieces of dive gear directly on your body, the comfort and fit for each item is extremly important
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A tempered glass lense resists breaking and avoid injury if the lens breaks
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Snorkel too short-constantly fill with water
to o long-harder to get a good breath of fresh air |
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Wear booties with heal strap fins to protect your feet from blisters, use in any temp
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Rinse water with fresh water after every diving day, do not leave in sun excessively, soak your gear over night, rinse with fresh water, make sure dry befor storing
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Most cylinders are made of aluminum or steel
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Steel cylinders are more resistant to exterior damage, rust fcan form internally
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Seriel number is a marking as is name of manufacturer, manufacturer symbol, material it is composed of, hydrostatic test date
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Scuba cylinders must be inspected internally and externally at least once per year at a professional dive shop or dive equipment repair facility by a certified cylinder inspector
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Hydrostatic testing every 5 years
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Keep some pressure in cylinder for long term storage, ensures that water cannot enter your cylinder and cause corrision
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In 1st stage the high pressure air from th3e cylinder is reduced to approximatley 10 bar (150) psi abovee pressure surrounding it
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2nd stage further reduces air pressure from approx 10 bar above surrounding pressure to whatever the ambient isMo
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Most common alternator air source is the octopus regulator, share with other diver
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Another alternator air source is combination regulator and power inflator for boyancy compensator that fits on its power inflator hose
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Divers must rely on gauges and instruments to tell them depth, bottom time, direction, and air supply, just as a pilot relies on instrumentation to fly a plane
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The submersible pressure gauge (SPG) is a required piece of equipment for dives
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Your depth and the duration of your dive at any particular depth are limited by a number of factors, so you need to monitor your depth when diving
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Have a refernce line, called a lubber line, used as the direction of travel
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At least once per year you should have your regulator serviced by a certified repair technician
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Along with keeping track of your depth under water, you must also keep track of the time you stay under water
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Typical dive computers record
maximum depth current depth actual dive time remaining allowed dive time |
BCs must be equipped with overpressure relief valve to prevent damage to BC from too much internal pressure. Also must have inflator/deflator hose-at end power and oral inflator/deflator.
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You wear lead weights when you are diving to offset the buoyancy of your body, your wetsuit, and other diving gear you are wearing
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No matter what type of weight system you choose, you must have a means of ditching the weights with one hand--known as a quick release`
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