• | Spanner (US: Wrench) (19 mm) |
1 | Locate the air vent screw. |
2 | Use a spanner to carefully loosen the screw. Note
Do not remove the screw completely!
|
3 | Stop when air or water escapes. |
4 | Keep the screw loose (open) until water is leaking out. |
5 | Close the air vent screw firmly. |