Triangle Fixture Insert each pole into fixture-hole Poles for BG400S Poles for BG700S Air intake hose Insert each pole(short-threads) into each fixture-hole. Then screw a nut with the pole-threads. Also glue it. Insert the triangle fixture into the air barrel as instructed on the picture. Insert O-Ring and push it to the Fixture. The O-Ring tightens the Triangle-fixture with motor-mount. Screw a nut to the pole-threads, But the threads must not come out of the nut as shown on picture. Unscrew the nut of the valve, then A ring is seperated from the valve. Insert a float(SK25), PVC-washer then Screw a nut to a plastic pole. The nut must be leveled to top of the threads as shown on the picture. Valve A Insert the nut and ring to air-intake hose, then screw the nut into Valve A..