It’s common to hear about frozen water pipes in basements, crawl spaces and other exposed areas. However, underground pipes are usually less likely to freeze due to the insulation provided by the surrounding soil, even in very cold regions. Even though sewer pipes are not commonly the first pipes to freeze, it does still happen. When they do, it’s important to recognize the problem as soon as possible to minimize the damage.
What Happens When a Sewer Pipe Freezes
A sewer pipe will usually not freeze solid in only a few hours. It may start freezing moisture around the interior of the pipes first, creating a ice layer which reduces the size of the inside of the pipe. If the deep freeze continues, the waste water coming through the pipe can become slush, then eventually freeze solid. Once this happens, there is a danger of the pipe bursting as the ice expands.
Although it is difficult to know what is happening in your sewer pipes under the ground, there may be signs they are in danger of freezing. First, it will need to be below freezing for several days in a row. Secondly, you may notice that your drains are not emptying as quickly as the pipes begin to freeze shut. Once they are completely frozen, you will have a sewer backup in all your affected drains.
If you believe your sewer pipes are freezing, call a sewer professional immediately. The sooner they can address the problem, the better the chance they can help prevent the pipes from bursting. Your sewer professional can use digital cameras and other techniques to determine what the issue is, and how best to fix it.
Posted on behalf of:
Metro Septic LLC
1210 N Tennessee St
Cartersville, GA 30120
(678) 873-7934
