| 摘要 |
PROBLEM TO BE SOLVED: To provide a toilet bowl flush tank having two-split tanks connected in series to each other, for preventing the occurrence of abnormal sounds resulting from air moving mutually between the tanks.SOLUTION: A toilet bowl flush tank B is provided on a toilet bowl body of a flush toilet bowl for storing flushing water to be discharged into a toilet bowl part. The toilet bowl flush tank B includes a first tank 10, a second tank 20 connected to a water discharge passage which discharges the flushing water toward the toilet bowl part, a communication passage 30 connecting the first tank 10 in series to the second tank 20, and a ventiduct 32 having one end opened to a position higher than a water level in the first tank 10 during its maximum storage, and the other end opened to be communicated with the internal of the second tank 20. |
