Can water leak out of the system when I remove the cartridge? 04 April 2023 12:31 Updated At most a few drops will run out of the system, as the system is closed by unscrewing the cartridge. Related articles Can the fresh water system be used without a filter cartridge? Is cleaning of the fresh water system with the Grünbeck water filter necessary at all after a longer standing time? What is special about the Grünbeck water filter? Does it make sense to sterilise the water in the tank using UV rays before using the clearliQ travel water filter? What is the shelf life of a replacement cartridge after purchase?