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Homeowners usually know they’ll have to juggle maintenance issues when they purchase a property, but a lot of people don’t think about the plumbing system. Learn four signs your sewer line is clogged—and what you can do about it.
What Is Your Main Sewer Line?
The sewer system in your home consists of one main sewer line with several branches of pipes extending to tubs, toilets, sinks, and other water sources throughout your home. Your main sewer line is responsible for transporting all waste from your home to the main sewer system, where it’s then moved to the water treatment plant.
4 Signs Your Sewer Line Is Clogged
Since the main sewer line affects all plumbing systems in your home, a clog could present an expensive (and potentially messy) problem if it’s not taken care of quickly. Some signs that your main sewer line is clogged include:
1. Water Backing Up in Your Toilet or Sink
One of the first signs there’s a problem with the main sewage line is water backing up in the sink or toilet. You may hear a gurgling sound and see water coming back up from a drain. If the backup is an isolated incident, it should only affect the plumbing in one area of the home.
For example, a clogged toilet won’t back up into the kitchen sink. If you flush the toilet and see water coming up from a basement drain, the problem is likely with the main line.
2. Slow Drains
Keep an eye on the drains when washing dishes, showering, or washing your hands. It’s not uncommon for hair to clog the shower drain and slow the water flow. However, if you experience a slow drain in multiple areas of the home, you likely have a clog in the main line. You may want to check your main line if slow drains are a theme in your home.
3. Funky Smells
You may notice a foul odor coming from your sink, tub, or drains in the basement if you have a clogged sewer line. If you smell sewage, you likely have a clogged pipe. Keep an eye out for sewage being pushed back up through drains in the sink or on the floor.
4. Flooded Yard
Water collecting in your yard could be a sign that your main line is clogged. Since sewer lines are buried several feet underground, you might not notice problems at first. Symptoms of a sewer line clog include standing water in your yard and a funky smell. You might notice the smell before the water surfaces.
Where Is Your Main Sewer Line Located?
You should find interior access to your main sewer line in your basement, garage, or crawl space. The pipe for the main line is about 4 inches in diameter and has a screw top.
Your main sewer line could also be located outside in your yard. Check near the foundation of your home or near the street by the municipal sewer lines.
Why Is My Main Sewer Line Clogged?
There are multiple reasons your main sewer line can become clogged. Some of the most common reasons are:
Broken or damaged pipe
Tree roots growing into the sewer line
Repeatedly flushing unsafe products (hygiene products, toys, food, diaper wipes, etc.)
Grease and oils poured down the kitchen sink
Multiple clogs in different drains
Extreme changes in temperature
You can keep your sewer line clear by ensuring that only toilet paper is flushed down toilets. Keep an eye on your lawn and have a professional check the main line every two years to catch any potential problems before they get out of control.
What to Do If Your Sewer Line Is Backed Up
If you suspect your clogged toilet is a more severe problem, you’ll want to hire a local sewer plumber in your area to inspect the pipes. A plumber will put a camera into the pipes and try to discover the problem. Once they find the area causing your problems, they can provide you with a list of solutions for sewer line repair.
Depending on the cause of your sewer line clog, you may have to:
Clean out the main line (remove debris or roots)
Repair broken pipe
Remove debris with a sewer rod
Replace the entire sewer line
How Much Does It Cost to Repair a Sewer Line?
Ideally, you’ll recognize the symptoms of a clogged main line early on so you can avoid paying for an entirely new sewer line. If, however, you inherited the problem when you purchased your home, it may be unavoidable.
If you need to replace the sewer line, expect to pay between $50 and $125 per foot. The average customer spends between $1,200 and $6,000 to replace or repair the sewer line.
You should also know that most standard homeowner insurance policies don’t cover the cost of a sewer line replacement. Some companies offer sewer coverage as an added option to your policy, but you’ll need to talk to your company to find out the specifics of your plan.