Running water at night when temperatures are below freezing

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I’ve been told to run the faucet furthest from the water meter at a slow trickle at night to prevent the pipes in our two story home from freezing (it’s about 5 degrees F where I am). Why do they recommend doing this at night only and not during the day—for example, when you’re away at work? If the temperature is below freezing both periods what is the difference? Wouldn’t you want to do this day and night?

In: Physics

22 Answers

Anonymous 0 Comments

In addition to the temperature difference between day and night, you also use your pipes more frequently during the day. Cleaning dishes, pouring water into cups, brushing your teeth, etc. Whereas at night, the pipes would be sitting “still” for 6-8 hours.

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