卫生间防水补漏工程的操作步骤：

首先:做好水电基础工程

从安全角度来讲，卫生间水管电线走上面比走下面好。但很多"游击队"贪图省力，水电走地上，甚至在卫生间开地槽，凿圆孔。

第二步:清理基层和墙壁

房子装修防水，涉及阳台、厨房、卫生间，但重点是卫生间。首先，用小金属榔头敲墙面、地面，如果发现"噗噗"的空声，意味着里面有空鼓，必须把空鼓部分全部敲掉。然后仔细清理四个墙面基层和地面，拔掉铁钉，清理杂土垃圾，通常用清水冲洗一遍，然后待其晾干。

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