Things You'll Need:
- Scuba Gear
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Step 1
Know that the regulator first stage attaches to the scuba tank and converts its high-pressure air to an intermediate pressure.
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Step 2
Realize that the second stage is the small mouthpiece that divers breathe from. It reduces the intermediate pressure to a breathable one, and is linked to the first stage by a strong rubber hose.
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Step 3
Know that there are two second stages ' one carried as a backup and often called an "octopus."
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Step 4
Understand that one of the hoses stretching from the first stage attaches to the buoyancy compensator and powers its inflation.
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Step 5
Realize that the submersible pressure gauge also attaches to the regulator's first stage and displays the amount of air left in the tank.
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Step 1
Remove the dust cap covering the first stage's air-intake screen.
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Step 2
Inspect the screen and clean any tiny debris or rust from the area.
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Step 3
Attach the first stage so that the second-stage hose will fall over the diver's right shoulder.
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Step 4
Tighten the first-stage screw gently.
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Step 5
Turn on the tank valve.
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Step 1
Rest assured that second stages have very few moving parts and seldom are defective.
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Step 2
Test the purge button. This is the round button in the center of the second stage, which releases a gentle blast of air.
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Step 3
Bite down on the mouthpiece of the second stage and breathe, making sure air is flowing.
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Step 4
Enter the water and descend.
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Step 5
Cough, spit, choke or vomit through the regulator if necessary ' it can take it. Just don't panic.
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Step 6
Press the purge button before breathing if you have removed and replaced the second stage underwater.
