How does this keep happening to them? I find it hard to believe that it is the cold freezing temperatures that is causing this. These huge plastic lines are under ground. At my house I haven't had a single pipe freeze yet and my pipes are 3/4" copper pipes that are uninsulated under my crawlspace. One would think that my pipes would freeze a lot quicker than the massive underground main waterline that has water flowing constantly through it. This just dose not make sense at all.
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