Just because it’s warmed up and the sun is out, don’t stop running a tap in your home if you’re at risk for freezing water and/or sewer lines. The frost this year is quite deep, up to 10 feet in some places. It will take, experts say, at least a month for the frost to go out. (Some say, the frost will go out at about the time the ice goes off the lakes, and that will be awhile.)
First, contact your city office that you’re running extra water. Second, turn on a cold-water faucet nearest where the water pipe comes into the building, and let it run with a flow about the width of a pencil. Third, KEEP IT RUNNING until told (by your city’s Public Works Dept.) to stop.
It will cost hundreds of dollars to thaw frozen water or sewer pipes. For about $20/month in extra water usage, it’s a bargain whether the city adjusts for it or not. (Most cities are now adjusting those charges for customers who have informed them.)