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

Never heard that, what I have heard is shut off the water to outdoor faucets. Not saying it doesn’t happen, but I’ve never had an issue with freezing pipes here. Usually get a couple days of -30C a year.

5 F doesn’t seem like anything to be considered about

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