1, turn off the filter, unplug the power supply, and then remove the filter cover.

2, use the tool to loosen the nut that fixes the filter, and then remove the existing platen and filter element in order.

3, the new cartridge should be soaked in water for half an hour to keep it wet before installation.

4, carefully clean the location of the installation of the cartridge, and then install the new cartridge, the ends should be fixed with the pressure plate.

5. Finally, install the cover back.