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二次排水要存水弯吗
更新时间: 2020-11-04 00:00:00  

二次排水要做存水弯,它的水位不得小于50毫米,在较高位置钻孔与二次排水没有关系,前提要有沉箱,否则无法做二次排水。在做排水时,应浸泡卫生间2-3天,看是否有漏水,而且在沉箱内先做一遍防水,再做二次排水,才能保证不漏水。

关键词: 排水

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