If water pipes are damaged, shut off the supply at the main valve.

如果水管破裂，请在主控阀处切断水流。

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In addition, the water in your water pipes and toilet tanks (not the bowls) is drinkable if you closed the valve on the main water line before the flood.

此外，如果你在洪水到来前将主水阀关闭的话，那么水管中的水和厕所水箱(不是便池)里的水是可以饮用的。

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Then shut the main water valve to protect the clean water already in your water system.

然后，关掉主水阀以保护你的水系统中的洁净水源。

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