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房子是带下越的，其中下越层在下暴雨时污水会倒流回来，这种状况怎样处理呢？ - 工程施工 - 项目管理 - 氿上知道
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满意答案
2、底层污水管支管在与主管连接时考虑支管与主管顺水流方向平行敷设2m以上（无支管）、排水点与主管高差500mm以上。如果雨水是虹吸式高差还要增加或者还是分流吧。
苏利先森
回答于：2014-02-13
共2条回答