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排水横管是做在垫层里呢？还是做在下层然后吊顶？ - 工程施工 - 项目管理 - 氿上知道
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如果不是设计的同层排水系统，在标准层将排水水平支管安装在垫层，这样卫生间的地面肯定高于其它房间，卫生间的地漏排水过程中可能因毛发、尘土、沙粒等等脏污堵塞而将卫生间的废水流到其它房间里，影响正常使用。将卫生间排水支管设计在下层卫生间顶板下约250mm，安装后按照规范要求做好实验不漏水即可。