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How can I prevent frozen pipes?
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Pipes freeze for three reasons: quick drops in temperature, poor insulation, and thermostats set too low. Both plastic and copper pipes can burst when they freeze. And a small crack of 1/8-inch in a pipe can leak up to 250 gallons of water a day, causing flooding, serious structural damage, and the immediate potential for mold.
Exposed pipes are most susceptible to freezing, so insulate pipes in your home's crawl spaces, garage and attic.
To prevent frozen pipes:
Heat tape or thermostatically controlled heat cables can be used to wrap pipes. Be sure to use products approved by an independent testing organization, such as Underwriters Laboratories Inc., and only for the use intended (exterior or interior). Closely follow all manufacturers' installation and operation instructions.
Seal leaks that allow cold air inside near where pipes are located. Look for air leaks around electrical wiring, dryer vents, and pipes, and use caulk or insulation to keep the cold out. With severe cold, even a tiny opening can let in enough cold air to cause a pipe to freeze.
If the forecast calls for unusually cold temperatures, let water drip from hot and cold faucets overnight. And open cabinet doors to allow warm air to circulate in places like below sinks or where pipes are near exterior walls.
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