FuPing 发表于 2014-12-8 17:40" Z3 @$ H9 o+ Y2 A) Q4 x
谢谢您的回答,如果是您说的这个问题,是不是要卸掉浴缸?浴缸上我能拧开的地方都拧开了,什么都看不到, ...
2 e" D: U! W9 A' E, U- ^, M9 U6 H8 B. c
Could be condense water from some vents, like the drain vent thorough the roof... I have heard the dropping sound for 10 years but I did not find any thing before I sold the house.