Blowing out water lines for winter storage.
Last night I decided to blow air through my water lines to drain for winter. I started with the low point drain caps both off. I used the blow-out attachment to connect my compressor to my city wat...
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Yes, ice in pipes will hold air pressure. I would try to introduce water back into the system with the faucets open to make sure those supply lines are open. Probably best to do this on a warm day when temps are above freezing. Once verified that all are open, proceed with usual winterizing.
One thing I do differently is to drain the system through the low point drains with faucets open before applying air pressure. The effect of a charge of water even under low air pressure hitting an elbow or closed valve can be enough to break things.
One thing I do differently is to drain the system through the low point drains with faucets open before applying air pressure. The effect of a charge of water even under low air pressure hitting an elbow or closed valve can be enough to break things.
