30 degrees for 3-4 hours...
It's supposed to drop to 30 degrees for 3-4 hours overnight tomorrow, then well back into the 40's during the day. It seems that getting just below 32, for only a couple of hours, should be a non-issu...
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If you are really concerned at that temp open ALL the faucets. This will allow any freezing water to expand forcing some water out.
