To provide a priming-type spouting toilet bowl capable of improving performance of a siphon toilet bowl, in particular managing pre-flush air occupying a spouting channel, reducing clogging, and enabling improved cleaning during flushing operation without sacrificing flush performance.SOLUTION: An adjustable flush connector 11150 of a priming-type spouting toilet includes a first section 11151 with a first rotatable connector, a second section 11152, and an adjustable connector 11156 having a second rotatable connector. An adjustable connector 11156 is longitudinally movable along the second section 11152 and is rotatably positioned.SELECTED DRAWING: Figure 69
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