How to Attach a Scuba Regulator to a Tank

The scuba regulator reduces the pressure of the air in the tank, allowing the diver to comfortably breathe underwater. Without the regulator, the air in the tank is not breathable. The first stage of the regulator attaches to the tank, while the second stage contains the mouthpiece through which the diver breathes. Thoroughly test and examine your equipment before entering the water.

Instructions

    • 1

      Stand the tank upright and remove the straps. Hold the tank in place with your legs and feet to keep it from falling over.

    • 2

      Open the valve at the top of the tank and remove the cover from the first stage of the regulator. Make sure the O-ring is securely in place either in the tank's valve or in the regulator's first stage.

    • 3

      Screw the regulator's first stage into the tank's valve. Turn clockwise until the stage is tight.

    • 4

      Slip the low-pressure hose from your regulator onto the BCD and tighten it by turning clockwise.

    • 5

      Open the valve on the tank by turning it counterclockwise to allow the air to flow. Place the regulator's mouthpiece, the second stage, in your mouth to test the airflow.