If your water is becoming only slightly carbonated, or not at all, then this is most likely because the CO2 cylinder is empty. Replace with an exchange cylinder.
ONLY WASSERMAXX OR SODASTREAM CO2 CYLINDERS SHOULD BE USED
You can exchange the empty CO2 cylinder for a full one and pay only for the gas. To exchange cylinders please contact an authorised dealer. For more information see www.wassermaxx.com/worldwide.
The cylinder must not be changed while a bottle is inserted into the drinks maker.
Tip: We recommend that you keep at least one cylinder at home as a back up, so that you always have CO2 available. Please contact an authorised dealer to learn how to purchase a spare CO2 cylinder.