Adjusting the top part
Adjusting the top part is relatively easy. Here is a short guide.
1. Remove the silicone cover
1. Take a firm grip of the silicone cover and slowly but firmly drag it up.
2. Adjust the top part
- Take a really firm grip of the top part and try to get it loose. You can use some force to do this.
- Check if any of the o-rings looks misplaced and if so - adjust them.
- Then fix the top part as hard as you can again (it does not need to be opened again so you can use some force here).
3. Thats it!
Well done!
If airtightness has not improved, please check the other steps in our FAQ or contact us.