Step on flush water valve and pump at least 15 strokes with pump handle.
脚踩在进水阀门踏板上,同时将手摇泵摇压最少15下.
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It'should not curl much and may be likened to an old - fashioned pump handle.
不应该太卷曲,也许有点想 旧式 的泵把手.
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Pull air pump handle and pump it repeatedly until the vacuum indicator button goes completely down.
每次拉动手柄,真空显示钮(深蓝色)自动降低,直至完全平降即可.
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