Signs Your Sewer Line May Be Backing Up
A sewer backup can quickly turn into a serious plumbing and sanitation problem. If sewage or wastewater is coming up through a tub, shower, toilet, or floor drain, stop using your plumbing and call Kojaack Plumbing Solutions. We provide sewer backup help throughout Marysville and Snohomish County.
Sewage Backing Up Into a Tub or Shower
Wastewater rising into your lowest drains, often a bathtub, shower, or floor drain, is one of the clearest signs of a main sewer line blockage.
Multiple Drains Backing Up Together
If toilets, sinks, tubs, or showers are backing up at the same time, the problem may be in the shared sewer line rather than an individual fixture or drain.
Strong Sewer Odor in the Home or Yard
Persistent sewage odors near drains, plumbing fixtures, or outside along the sewer line can indicate a blockage, damaged pipe, or other sewer line problem.
Gurgling Toilets or Drains
Gurgling sounds when another fixture drains or a toilet flushes can mean air is being displaced by a restriction farther down the plumbing or sewer line.
Wet or Soggy Areas in the Yard
An unusually wet, soft, or green area above the path of an underground sewer line can be a sign that wastewater is escaping from a damaged pipe.
Water Rising When You Flush
A toilet that fills unusually high, drains slowly, or causes water to rise in another fixture can indicate a developing blockage in the drain or main sewer line.
What Causes a Main Sewer Line to Back Up?
A sewer backup happens when wastewater can no longer move freely through the drain and sewer system. The blockage may be caused by material inside the pipe, tree root intrusion, a damaged sewer line, or a problem farther downstream. Finding the cause matters because clearing a blockage and repairing a damaged sewer pipe are two very different solutions.
Tree Roots Can Enter Older Sewer Lines
Tree roots naturally seek moisture and can enter through cracks, loose joints, or other openings in older sewer piping. Once inside, roots can continue growing and collect waste and debris until flow through the sewer line becomes severely restricted.
Grease, Wipes, and Debris Can Restrict Sewer Flow
Grease, wipes, paper products, and other material can accumulate inside a sewer line over time. As the opening becomes smaller, wastewater has less room to pass through and the likelihood of a blockage or backup increases.
Older or Damaged Sewer Pipes Can Cause Recurring Backups
Older clay, cast iron, Orangeburg, and other aging sewer lines can crack, deteriorate, separate, sag, or collapse. A low section of pipe, sometimes called a belly, can also hold wastewater and solids instead of allowing them to flow properly.
The Problem May Be Outside Your Private Sewer Line
Not every sewer backup originates within the home's private plumbing system. In some situations, a downstream or municipal sewer problem may contribute to the backup. Determining where the problem is located helps establish what type of repair is needed and who may be responsible for it.
What to Do When Your Sewer Is Backing Up
The most important step is to stop adding water to the drainage system. These precautions can help keep the backup from getting worse while you arrange plumbing service.
⚠️ Quick Steps That Help
- Stop using toilets, sinks, showers, tubs, washing machines, and other drains until the blockage has been evaluated.
- Keep children and pets away from any area where sewage or wastewater has surfaced.
- Avoid direct contact with sewage or contaminated water.
- If water is actively entering the drainage system from a plumbing fixture or appliance, stop that source if it can be done safely.
How We Diagnose and Clear a Sewer Backup
Tell Us What's Backing Up
We start by learning which fixtures are affected, when the problem began, and whether multiple drains are backing up at the same time.
Locate the Sewer Blockage
The symptoms and plumbing layout help narrow down whether the restriction is in an individual drain, branch line, or the main sewer line.
Clear and Inspect the Line
Depending on the problem, sewer cleaning may involve mechanical drain cleaning, hydro jetting, or other methods. A sewer camera inspection can be used when we need to see the condition of the pipe or identify a recurring problem.
Confirm Flow and Explain the Cause
After the blockage is cleared, we verify that wastewater is flowing properly and explain what likely caused the backup and whether additional sewer line work should be considered.
Does a Sewer Backup Mean the Sewer Line Needs to Be Replaced?
No. Many sewer backups are caused by blockages that can be cleared without replacing the pipe. The condition of the sewer line and the reason for the blockage determine what happens next.
A one-time obstruction may only require the line to be cleared. Recurring backups, root intrusion, cracks, separated joints, severe corrosion, bellied pipe, or a collapsed section can point to a structural sewer line problem. When the cause isn't clear, a sewer camera inspection can provide a direct look inside the pipe and help determine whether cleaning, repair, or replacement makes sense.
Kojaack Plumbing Solutions can also use hydro jetting when appropriate to remove stubborn buildup and restore flow through drain and sewer piping.
Local Sewer Backup Help From a Licensed Plumbing Team
Honest Recommendations
We explain what we find and recommend the work that makes sense for the actual problem.
Clear Communication
You'll understand where the problem is, what may have caused it, and the available options before additional work begins.
Respect for Your Property
We work carefully around your home and property and explain when access or additional investigation is necessary.
Licensed Experience
Our licensed plumbing team works with residential and commercial drain, sewer, and plumbing systems throughout the area.
Sewer Backup Help Throughout Marysville & Snohomish County
Kojaack Plumbing Solutions is based in Marysville and provides sewer backup and plumbing service throughout Snohomish County.
Our service area includes Marysville, Everett, Lake Stevens, Arlington, Snohomish, Mill Creek, Mukilteo, Lynnwood, Edmonds, Mountlake Terrace, Brier, Monroe, Granite Falls, Stanwood, Sultan, Gold Bar, Darrington, Smokey Point, Tulalip, and surrounding communities within our service area.
If multiple drains are backing up, sewage is coming through a tub or shower, or you suspect a main sewer line blockage, call (425) 725-7635 or contact Kojaack Plumbing Solutions.
Sewer Backup Questions & Answers
Yes. Sewage and contaminated wastewater can contain bacteria and other contaminants. Avoid direct contact and keep children and pets away from affected areas.
When a main sewer line is blocked, wastewater can move toward the lowest available drain in the home. Bathtubs, showers, and floor drains are often among the first places a main sewer backup becomes visible.
When several fixtures are affected at once, the restriction may be in a shared drain or main sewer line rather than an individual sink, toilet, or shower drain.
Stop using toilets, sinks, showers, tubs, washing machines, and other fixtures that send water into the drainage system. Keep people and pets away from sewage and call a plumber to locate the blockage.
Hydro jetting can be effective for certain sewer and drain blockages, particularly when grease, sludge, or other buildup is restricting the pipe. The appropriate cleaning method depends on the cause and condition of the sewer line.
Not every backup requires a camera inspection, but it can be especially useful for recurring blockages or when root intrusion, damaged pipe, separated joints, or another structural sewer problem is suspected.
Not necessarily. Many sewer blockages can be cleared without excavation. Digging may become necessary when inspection identifies a damaged, collapsed, or otherwise defective section of underground sewer pipe that requires repair or replacement.
Yes. Kojaack Plumbing Solutions is based in Marysville and provides sewer backup, drain, and plumbing services throughout Snohomish County and surrounding communities within our service area.