Safety notes :

Every 2 years needs only regular check of the weight of the CO2 container (the nominal weight and the tolerance is printed in each cartridge). if the weight is lower is necessary to change the CO2 cylinder. This one can last 10 years.

Every 2 years the chemical/spare fuse in the automatic should must be replaced (as it could be damaged by getting wet).

If the fuse is in contact with higher humidity or water, it is necessary to unpack it and dry it. In this case may be necessary to change the chemical fuse.