Avoiding frozen pipes

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Old 03-04-15, 02:49 PM
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Avoiding frozen pipes

Just wondering what the best way to insulate a water line underground would be. I installed a water Line from my house to my separate garage. The line is only about 2' down in some spots due to large immovable rocks and I want to make sure it doesn't freeze ( I live in Canada, it gets cold, not igloo cold but cold). Can you run a heat trace line out from the house or is that asking for trouble ?
 
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Old 03-04-15, 02:52 PM
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Best way is to lay 2" rigid foam over the waterline before you bury it. You want it to be at least 12" either side of the line. Be sure to backfill with a well drained fill.
 
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Old 03-04-15, 03:29 PM
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My spidey senses tell me you might be in the Vancouver area............Is this so?

If you find out what the frost depth for your area is you will have a good idea on how much insulation to use.
If your frost depth is say 2 feet then you might find you would do well to put more than 2 inches and wider than what Kieth suggested.
Also, you need to use a closed cell insulation that is designed for burial.

Ask someone in your area what the general frost depth is for basement and foundation construction is.
 
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