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Common Sewer Problems in the Pacific Northwest

Learn about the unique sewer challenges facing homeowners in Seattle and the Pacific Northwest region.

6 Common Sewer Problems in Pacific Northwest Homes

The Pacific Northwest is a beautiful place to live, with its lush green landscapes and stunning natural scenery. However, the very things that make this region so beautiful can also wreak havoc on your home's sewer system. For homeowners in Seattle, Skagit County, Snohomish County, King County, and Pierce County, understanding the common sewer problems in the area is the first step to preventing and addressing them.

Here are six of the most common sewer problems faced by homeowners in the Pacific Northwest:

1. Tree Root Intrusion

This is, without a doubt, the number one cause of sewer line problems in the Pacific Northwest. The region's abundant trees, including Douglas firs, Western red cedars, and Bigleaf maples, have extensive root systems that are naturally drawn to the moisture and nutrients found in sewer lines. The roots can infiltrate the pipes through tiny cracks or loose joints, and once inside, they can grow into a dense mass that can block the flow of waste and even cause the pipe to break.

2. Heavy Rainfall and Saturated Soil

The Pacific Northwest is known for its wet weather, and all that rain can take a toll on your sewer system. When the soil becomes saturated with water, it can put pressure on the pipes, causing them to shift, crack, or collapse. Heavy rainfall can also lead to an influx of water into the sewer system, which can overwhelm the pipes and cause backups.

3. Aging and Deteriorated Pipes

Many homes in the Seattle area were built several decades ago and still have their original sewer lines. These older pipes, which are often made of clay, cast iron, or Orangeburg, are susceptible to a variety of problems:

  • **Clay pipes** can become brittle and crack over time.
  • **Cast iron pipes** can rust and corrode from the inside out.
  • **Orangeburg pipes**, which are made of wood pulp and pitch, can deform and collapse under pressure.

If you have an older home, it's a good idea to have your sewer line inspected to assess its condition.

4. Shifting and Settling Soil

The Puget Sound region is seismically active, and the ground is constantly shifting and settling. Even minor earth movements can put stress on underground pipes, causing them to become misaligned, disconnected, or broken. This is particularly a problem in areas with steep slopes or unstable soil.

5. "Bellied" or Sagging Sewer Lines

A bellied pipe is a section of the sewer line that has sagged or dipped, creating a low spot where waste and water can collect. This can be caused by poor installation, shifting soil, or the weight of the earth above the pipe. A bellied pipe will eventually lead to a blockage and will need to be repaired or replaced.

6. Grease and Debris Buildup

While not unique to the Pacific Northwest, grease and debris buildup is a common cause of sewer clogs everywhere. Pouring grease, oil, and fat down the drain can cause it to solidify in the pipes, creating a stubborn blockage. Other items, such as coffee grounds, hair, and so-called "flushable" wipes, can also contribute to clogs.

Protecting Your Pacific Northwest Home

Being aware of these common sewer problems can help you take steps to protect your home. Here are a few tips:

  • **Be mindful of what you plant:** Avoid planting trees and large shrubs near your sewer line.
  • **Don't pour grease down the drain:** Dispose of grease and oil in the trash.
  • **Have your sewer line inspected regularly:** A regular video camera inspection can help you catch problems early before they become major issues.

If you suspect you have a sewer problem, don't hesitate to call a qualified sewer repair specialist in the Seattle area. They have the expertise and equipment to diagnose and repair any of the common sewer problems that plague homes in Skagit, Snohomish, King, and Pierce Counties.

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