Is there little fizz on the water (sparkling water not good)? Is the pressure gauge lower than 3.5 bar? Time to replace the CO2 cartridge.
- Unscrew the pressure gauge from the empty bottle
- Bring the empty CO2 cartridge to the recycling park
- Remove the seal from the new CO2 cartridge
- Screw the pressure gauge onto the new cartridge until it is firmly tightened.
- The pressure gauge is automatically back at 4 bar