| 摘要 |
A dual flush-volume outflow valve assembly for a toilet tank is provided. The valve assembly includes a base having an opening for passing water out of the toilet tank, a lower outflow tube section extending upwardly from the base, the lower outflow tube section having a hollow interior and including a high-volume flush valve configured to pass a first, larger volume of water from the toilet tank to the toilet bowl when opened, and an upper outflow tube section slidably coupled to and extending upwardly from the lower outflow tube section, the upper outflow tube section having a hollow interior and at least partially forming a low-volume flush valve configured to pass a second, smaller volume of water from the toilet tank to the toilet bowl when opened.
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