1. First use a small hacksaw to saw off the leaking area-the saw cut should be flat.
2. Gently grind the new exposed port with sandpaper, not too much.
3. Clean the port with a clean cloth.
4. Apply a layer of special glue on the port and blow it for a while; at this time, apply glue on the "bamboo" joint.
5. Connect the port to the "bamboo" and turn it over repeatedly until it is firm. Connect to the other end in the same way.
6. After everything is normal, apply a proper amount of glue to the joints to ensure no leakage.