My jet is drifting in different directions. How do I maintain (descale) my showerhead?

1. Fill a glass with white vinegar.
2. Remove the Water Saver from its support
3. Immerge the Water Saver in white vinegar for two hours. The cartridge (where the water comes out) must face upwards. Do not add anything to vinegar.
4. Remove the Water Saver from the white vinegar and put it back on its support. It’s ready to use!

For more informations, check this video.