Next, the mixer handle is removed.

In the hole under the plug there is a screw that fixes the handle. Attention should be paid to its device. It can be made under the hexagonal key or under a flat (slotted) screwdriver. Depending on the type of screw design, we select the necessary tool. Slightly loosen the connection of the connection, not completely turning the screw. Next, the mixer handle is removed. Then we turn our hands with a decorative spherical nut, which is located under the handle. This must be done with great care, since the nut is made of plastic, it is very delicate and fragile. After the nut is dismantled, access to the second nut is opened, which is directly responsible for the mounting of the cartridge.