Frost Free Pipe


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Old 08-12-06, 04:24 PM
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Gen
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Frost Free Pipe

I've got a copper water line that runs through the garage to an outside faucet--subject to freezing. It's shutoff is in the baement with a drain valve next to it to empty the pipe.

My question is: In the winter, when I close the shutoff and open the drain valve and open the outside faucet to drain the water out, should I leave these 2 valves open till spring, or close them?? What the difference??
Thanks!
 
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Old 08-12-06, 05:41 PM
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If you leave the outside valve open, it is subject to having cold air go through the pipe and freeze any water that may not have drained. With your situation, I would blow air through the line after draining to insure that almost all of the water was removed. Many people with frost-free faucets make one of two mistakes. One is leaving a hose connected to the faucet, the water is not drained and it freezes. The other is installation. They have to be sloped downward towards the outside for the faucet to properly drain and not freeze.
 
 

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