To simply install and remove the sink by constructing the sink by an assembly of a sink main body, a tap and a strut for supporting the tap.

The bottom wall 6 of a water storing part 7 of a sink main body 1 is formed in a position higher than the ground surface. A drain hose 9 is connected to a drain hole 8 provided in the bottom wall 6, and a strut 13 higher than the sink main body 1 is provided on the sink main body 1. Further, a tap 16 is fitted to the upper part of the strut 13 in such a manner as to face the upper side of the water storing part 7, and a connecting pipe 17 connected to the tap 16 is laid along the strut 13. The thus constructed sink body is installed in a position where a connecting port 22 of the existing city water pipe 21 is placed. In removal, in the case where the connecting pipe 17 and the city water pipe 21 are connected to each other by adhesion, one of the pipes is cut to separate the pipes, and in the case where they are connected by a coupling, the coupling is disconnected to separate the pipes. Accordingly, the sink body can be carried to an area where the connecting port of the city water pipe is placed and installed, and if needed, it can be removed to another place.