When temperatures dip below freezing, exposed water pipes and fixtures are at risk of freezing. Depending on the type of pipes you have, the expansion that occurs when water freezes can cause pipes to break.
Here are some steps you can take to prevent your water lines from freezing:
| 1. |
Insulate exposed pipes and backflow preventers
You can wrap them with towels or other materials, or buy foam pipe insulation at a hardware store. Wrap backflow preventers in plastic or buy a cover. |
| 2. |
Disconnect hoses from outdoor spigots
It's also a good idea to insulate the spigot with a cover. |
| 3. |
Know where your home's water shut-off valve is and how to use it!
For most single-family homes, the main shut-off valve for the water supply is in the ground near your outdoor spigot, in line with your water meter (see image below). It's important to keep the shut-off value clear of overgrowth and easy to access. In the event of a pipe break or other water leak in your home, you can use this valve to turn off the water supply, which will prevent water damage.
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| 4. |
Let an indoor faucet drip overnight
This is ideal for older homes with a crawl space and un-insulated pipes. Flowing water is less likely to freeze. If you have a two-story home, let a faucet on the first floor drip. Make sure the drain isn't blocked and remember to turn off the water in the morning.
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| 5. |
If your pipes freeze, the ice will thaw as daytime temperatures rise, but keep the following in mind:
- If you're going to be at home, open a faucet and wait until water begins flowing again. Listen for leaks—water expands when it freezes, which can cause leaks in pipes. If you discover a leak, turn off the water supply to your home at the main shut-off valve and contact a plumber.
- If you're planning to leave your home, turn off your water supply at the main shut-off valve. This will prevent water damage from potential leaks in your plumbing. If you have a leak, contact a plumber.
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