Hi, you also need an extension, which you have to attach to the top of the filter cartridge. This exerts force on the cartridge with the help of the tank cap to hold it in the correct position. The extension was included with the original accessories for the J6 (my machine).

the answer was not helpful,
if you use the Claris Smart+ filter cartridge with the Z6, do you need a shorter filter cartridge neck?

Hi, I have the E800 and also need the cleaning tablet and the descaling tablets from time to time