What is the most common reason for sump pump failure ?

抽水泵故障的最常见原因是什么？

Sure wish we was over at the sump right now .

真想马上结束去水塘。

The sand is cleared from the sump .

从坑中清除细沙。

The volume of sump is subject to actual drainage . Construction interference reduction shall be considered during positioning .

集水坑的容积应按实际排水量确定，其位置确定应减少施工干扰。

A more manageable approach , in the right circumstances , is to install an isolated sump pit with several feet of gravel around it .

如情况容许，一个更可行的办法是安装一独立的排水坑，坑的周围填上几英尺的碎石。