PURPOSE: To perform rim cleaning and jetting with intensive water power due to channel water pressure and greatly improve cleaning force by providing three outflow ports, such as a rim water pathway, a jetting hole and a tank hole, in a switch valve.

CONSTITUTION: When an operating handle is rotationally moved, an arm 41 is pushed up via an operating lever and the valve body 28 of a switch valve 27 makes a water supply port 29 communicate with an outflow port 33 to a rim water pathway to start rim cleaning. At the same time, a drain valve is pulled up via a ball chain at the end of the arm 41 to start cleaning in a toilet bowl. Then, when a water level in a tank is lowered, a float 45 is moved down, the arm 41 is rotationally moved via the locking strip of a float holder 43 and the valve body 28 makes the water supply port 29 communicate with a jatting hole to jet cleaning water with intensive water power due to channel water pressure. As a result, sufficient cleaning can be performed, even if the level of water reserved in the tank can not be set high.