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How to Prevent Frozen and Burst Pipes

Ask This Old House plumbing and heating expert Richard Trethewey offers a few tips to keep water from freezing up in your pipes during the winter months.

In this video, Ask This Old House plumbing and heating expert Richard Trethewey offers a few tips to keep water from freezing up in your pipes during the winter months. Keep pipes from bursting with these 6 steps.

How to Prevent Pipes from Bursting

  1. To keep water from freezing on an outdoor spigot during the winter, shut off the water valve to the outdoor spigot.
  2. Drain excess water from the pipe.
  3. To prevent indoor pipes from freezing, cover exposed pipes with foam insulation. It comes in long strips and can be cut down to size with a utility knife.
  4. Use cable ties to tie downpipe heating cable for any pipes that may need extra heat to stay fluid.
  5. If pipes under a sink are on an outdoor-facing wall, open up the cabinet doors to let the heat from the house flow underneath the sink.
  6. On extremely cold days, leave at least one sink on a slow drip to keep water moving in the pipes.

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