Cleanout should be installed no less than 200mm away from wall.If cleanout is replaced by choke plug at start point of waster water pipe, it should be no less than 400mm away from wall.

• 清扫口的安装与墙面距离不得小于200mm，若污水管起点设置堵头代替清扫口时，与墙面距离不少于400mm。