How to Bleed an Air-Locked Pump First, determine if your spa has an air bleeder screw or not. To determine if your spa has an air bleeder screw, look where the spa information sticker is located: Location of spa information sticker This spa does not have an air bleeder screw For spas without an air bleeder screw – Click Here This spa has an air bleeder screw located near the drain. This spa has two air bleeder screws located near the drain. For spas with one or two air bleeder screws – Click Here