1, the disassembly of the water mixing valve is actually very simple, the water mixing valve disassembly must first remove the handle. There is a small screw under the handle. Remove the screw and take the handle out.
2, then remove the shell of the mixing valve, there is a red and blue button above the handle, there is a small screw inside the buckle, the small screw is unscrewed, the handle can be taken off, and then a semi-round decorative cover, unscrewed counterclockwise, below is a hexagonal nut, you can use an adjustable wrench card to unscrew counterclockwise.
3, after the removal of the mixed water valve, to remove the hexagonal screw first remove the outer rear-ring, that is, the outside of the closed circle, because of rust, it is not easy to disassemble, you can first use hot water to unwrap the cloth, and then you can use a wrench to unscrew the hexagonal screw and finally pull out the valve core.