Flow channel switching valve and shower system

摘要

A channel switching valve (A) of the present invention includes a discharge hole ( 14 ) which discharges water having a proper temperature and a drain hole ( 15 ) which drains water having an improper temperature. A part of a first channel ( 11 ) extending from a hot water supply port ( 24 b) to the discharge hole and a part of a second channel ( 11 ) extending from the hot water supply port to the drain hole are common. Therefore, the channel switching valve can be compact.