Sewage backs up into homes when the main sewer line cannot carry waste away fast enough. The most common reasons are clogs from grease, wipes, and paper products, tree roots growing into the pipe, broken or sagging sections of the line, and heavy storms that overload the city sewer system.
Grease and Things That Should Not Go Down Drains
Cooking grease turns solid as it cools and coats the inside of pipes. Over time, it catches food scraps and other debris. Wipes, paper towels, and hygiene products add to the problem because they do not break down like toilet paper. Together, they can close off the main line.
Roots and Aging Pipes
Older sewer lines made of clay or cast iron can develop cracks and loose joints. Roots from trees and shrubs sense the moisture and grow inside, forming a net that traps waste. Pipes can also settle and sag, leaving low spots where solids collect. Over the years, a pipe can even collapse.
Heavy Rain
During intense storms, city sewers can fill quickly. When they reach capacity, water may push back toward connected homes and come up through the lowest drains. A backwater valve, which lets water flow out but not back in, can help some homes. A plumber can tell you if one fits your situation.
Signs a Backup May Be Coming
Gurgling toilets, sewer smells, and drains that slow down across the house are early warnings. Water in a basement floor drain is a clear sign the line is struggling.
Taking care with what goes down drains helps. Keep grease in a container, flush only toilet paper, and use strainers in sinks.
If you have had a backup or see the warning signs, the line can be inspected with a camera and cleared. If you are not sure how old your sewer line is, asking about its condition during a visit can help you plan. Call JPR Plumbing at (833) 603-1840.