| 摘要 |
PROBLEM TO BE SOLVED: To provide a toilet bowl flushing tank which prevents sounds from causing a user discomfort and has great capacity for flushing human waste in a water closet. SOLUTION: Packing 3a for sealing an inside is wedged between an opening 1a of an outer tank 1 and a cover member 3, and the outer tank 1 is provided with an intake valve 5 for taking in air during a discharge of flushing water.
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