YSK that when you have no heat in your house and its freezing outside, letting cold water run in your taps can prevent pipes from freezing up/bursting.
from /r/YouShouldKnow
YSK说，当你家里没有暖气，外面又很冷的时候，让冷水在你的水龙头里流动，可以防止管道冻结/爆裂。
YSK说，当你家里没有暖气，外面又很冷的时候，让冷水在你的水龙头里流动，可以防止管道冻结/爆裂。
YSK that when you have no heat in your house and its freezing outside, letting cold water run in your taps can prevent pipes from freezing up/bursting.
from /r/YouShouldKnow