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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A common approach is hydrostatic testing-filling a closed pipeline section with water, then pressurizing the line to a specified pressure to check for leaks.

常用的试验方法为静水试压，即：向封闭的管段充水，然后把管段升压至规定压力，检查是否泄漏。

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