The TeraPump TRFA01 fuel transfer pump is easy use… there’s only 5 easy steps to transfer gas fast… Here's How To Use A Tera Pump: Step 1: Simply attach the adaptor to your gas can Step 2: Insert intake hose into your gas can Step 3: Securely screw pump head onto your gas can Step 4: Clip outtake hose to the tank you want to fill Step 5: Press the green “ON” button and the fuel will transfer until stopped - either automatically or manually. *The pump will stop automatically when the sensor is activated or you can stop it yourself by simply pressing the red “OFF” button.* It’s that simple and easy! Watch the video below to see a demonstration: CLICK HERE TO LEARN MORE ABOUT THE TERAPUMP TRFA01