1. Hold the screw top upside down
2. Put the o-ring into the top’s recess
3. Stack the spring,
4. Then the valve, o-ring pointing up
5. Slide the body over the whole stack and twist
6. Screw the top tight with a screwdriver
1. Hold the screw top upside down
2. Put the o-ring into the top’s recess
3. Stack the spring,
4. Then the valve, o-ring pointing up
5. Slide the body over the whole stack and twist
6. Screw the top tight with a screwdriver