Abstract: A flush toilet apparatus includes a toilet body that includes a rim water spout port, a tank that stores washing water, a rim side water supply channel that supplies washing water to the rim water spout port, a tank side water supply channel that supplies washing water to the tank, a flow channel switching part that adjusts an amount of washing water that is supplied to one or both of the rim side water supply channel and the tank side water supply channel, and an electrical power failure detection part that detects electrical power failure, wherein, in a case where electrical power failure is caused when washing water is supplied to the tank side water supply channel, the flow channel switching part decreases washing water that is supplied to the tank side water supply channel and increases washing water that is supplied to the rim side water supply channel.

Abstract: A flush toilet apparatus includes a toilet body that includes a rim water spout port, a tank that stores washing water, a rim side water supply channel that supplies washing water to the rim water spout port, a tank side water supply channel that supplies washing water to the tank, a flow channel switching part that adjusts an amount of washing water that is supplied to one or both of the rim side water supply channel and the tank side water supply channel, and an electrical power failure detection part that detects electrical power failure, wherein, in a case where electrical power failure is caused when washing water is supplied to the tank side water supply channel, the flow channel switching part decreases washing water that is supplied to the tank side water supply channel and increases washing water that is supplied to the rim side water supply channel.

Abstract: A flush toilet of the present invention is provided with a toilet main body and a storage tank supplying cleaning water to a supply opening of the toilet main body. The toilet main body includes a bowl, a rim, a rim water passage formed on an entire circumference of the rim, and an aperture formed on the entire circumference of the rim, and a water conduit formed between the supply opening and the rim water passage. The water conduit includes an upstream water conduit extending to the right side from the supply opening, and a downstream water conduit extending to the left side from the upstream water conduit, and the downstream water conduit is formed such that a downstream end of an inner wall surface on the right side is positioned in the left side to a center line of the toilet main body in the left-right direction.

Abstract: A flush toilet of the present invention is provided with a toilet main body and a storage tank supplying cleaning water to a supply opening of the toilet main body. The toilet main body includes a bowl, a rim, a rim water passage formed on an entire circumference of the rim, and an aperture formed on the entire circumference of the rim, and a water conduit formed between the supply opening and the rim water passage. The water conduit includes an upstream water conduit extending to the right side from the supply opening, and a downstream water conduit extending to the left side from the upstream water conduit, and the downstream water conduit is formed such that a downstream end of an inner wall surface on the right side is positioned in the left side to a center line of the toilet main body in the left-right direction.