January 12, 2022
Protecting pipes
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Water main breaks become more prevalent in cold temperatures, but can be prevented with routine maintenance By Wendy Todd Winter had a relatively balmy start in St. Louis with the temperature on Christmas Day having reached the 60s. But now more typical winter-like weather is here. And as the temperature drops, water main breaks become more prevalent. Nearly 20 in the St. Louis area have been reported in the first week of January. Over 850 water main breaks take place daily throughout the United States. Fluctuations in temperatures are the main cause. When the temperature drops the ground freezes and puts pressure on the pipes. Over time, the expanding and contracting of the pipes weakens the pipe material. Corrosion of pipes, conditions of soil and the move-
ment and age of the ground can also be factors. Conversely, high temps can cause the ground to shift and damage pipes causing a main break. Aging pipes also contribute to main breaks. According to Pentair Pelican, a water service company, “Many pipes currently in use date back to the 1980s, and are made of iron, which can crack during extreme temperature changes.” Water main breaks can lower the pressure of the water in the home causing a health hazard. Though a water main break doesn’t always present a health issue, there are occasions when contaminants and pathogens from septic systems, surrounding soil and nearby industrial and agricultural facilities can
enter the drinking and cause illness. Illness isn’t the only concern with main breaks. They can be costly to repair as well. According to Home Advisor, the average cost of water main break repair is just under $1,000. The cost depends on the size and length of the pipe and the hours of labor. Main break repair averages between fourto-six hours. Missouri American Water, the largest investor-owned water utility in the state, suggests several precautions to prevent a water main break: Prior to frigid temperatures: • Know the location of your main water shut-off valve. If a pipe freezes or bursts, See ‘PIPES’ page 2
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