WATER CLOSET

To provide a water closet capable of reliably switching water supply routes for supplying washing water to a rim water discharge port and a jet water discharge port and achieving the stability of the discharge water flow rate.SOLUTION: A water closet 1 comprises: a water supply channel 26 which makes it possible to supply washing water from a water storage tank 18 to a rim water discharge port 8a and a jet water discharge port 10a of a toilet bowl body 2; a switching unit 22 for switching water supply routes to make the jet water discharge port discharge the washing water after making the rim water discharge port discharge the water; and a booster pump 20. The switching unit includes: a switching valve body 34 which mechanically opens and closes a water supply route to the jet water discharge port under the hydraulic pressure applied by the booster pump; a first channel 28 which extends from the booster pump to the switching valve body; a second channel 30 which extends from a branch part B of the first channel to the rim water discharge port; and a third channel 32 which extends from the switching valve body to the jet water discharge port: switching valve bodies being arranged in positions to face one another in the axial direction of the first channel.SELECTED DRAWING: Figure 3 【課題】リム吐水口やジェット吐水口に洗浄水を供給する給水経路を安定して切り替えることができ、吐水流量の安定化を実現することができる水洗大便器を提供する。【解決手段】本発明の水洗大便器１は、貯水タンク１８から洗浄水を便器本体２のリム吐水口８ａ及びジェット吐水口１０ａに供給可能にする給水路２６と、リム吐水口から吐水させた後、ジェット吐水口から吐水させるように給水経路を切り替える切替部２２と、加圧ポンプ２０と、を有し、切替部は、加圧ポンプの加圧による水圧を受けてジェット吐水口への給水経路を開閉する切替弁体３４と、加圧ポンプから切替弁体まで延びる第１流路２８と、この第１流路の分岐部Ｂからリム吐水口まで延びる第２流路３０と、切替弁体からジェット吐水口まで延びる第３流路３２と、を備え、切替弁体は、第１流路の軸方向上の対向する位置に配置されている。【選択図】図３