Pump shaft seals use mechanical seal, pump top and bottom, respectively, equipped with water injection plug and the drain plug.

泵的轴封采用机械密封，泵体顶部和底部分别装有注水、放泄的螺塞。

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Wait until any flood waters are below basement level before trying to drain or pump a basement.

等到洪水降到地下室的水平线以下时，再去排空或用水泵抽干地下室的水。

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Install drain hose to vent tube at bottom of pump.

在水泵底部安装排放管到排水管。

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You add in the sump pump, the French drain, the alarm system, the slate roof, the gutters, the generator and you convince yourself that you're safe.

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There are some systems that actually will take a circle and drop it just below the surface of the water and have the oil kind of flow into it, almost like a drain, recover it and pump it out.

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