Aug5

By Dave Bangar

How to Deal With Tree Roots in Your Sewer Lines

Tree roots can be incredibly persistent and challenging for homeowners in the Kelowna area. They can grow through concrete, under foundations, and most problematically, into sewer drains requiring repairs creating plumbing emergencies. Once tree roots infiltrate sewer lines, they can quickly expand, causing blockages and halting the drainage system entirely.

Understanding how to address tree roots in sewer lines is crucial for preventing serious issues.

Why Do Tree Roots Invade Sewer Lines?

Tree roots naturally seek out moisture to support their growth and nutrient transport. Even a minor crack or misalignment in a sewer line can attract tree roots. Once inside, these roots thrive in the abundant moisture and continue to grow, eventually causing significant damage by cracking pipes and obstructing drainage.

Signs of Tree Roots in Sewer Lines

Common indicators of tree root invasion in sewer lines include:

• Wet, soggy patches in the yard caused by roots breaking through pipes
• Unpleasant sewer odors around the property
• Gurgling sounds from toilets and drains despite using drain cleaners
• Slow drainage and frequent backups
• Sinkholes forming due to water undermining the ground

If you notice any of these signs, tree roots might be the culprit.

Locating the Main Sewer Line

Understanding the sewer system can help identify issues:

• Sewer Main: The large pipe under the street that collects waste from all houses on the block.
• Main Sewer Line: Connects the home to the sewer main, typically found in the front yard and made from materials like clay, concrete, cast iron, or plastic.
• Main Drain Line: The internal pipe that collects waste from all household fixtures, usually 4 inches in diameter and made of plastic or cast iron.

To find the sewer line, observe where the main drain line exits the house and heads toward the street. Alternatively, you can contact Dig-Safe (8-1-1) to map out the sewer and other utility lines.

Methods to Remove Tree Roots from Sewer Lines

If tree roots are causing problems, take action to avoid further damage. Here are five methods to remove tree roots from sewer lines:

1. Rock Salt: Rock salt dehydrates and kills tree roots. Pour half a pound of rock salt into the toilet and flush. Repeat this three more times to use a total of two pounds. Let the system sit for 12 hours without flushing.
2. Foaming Root Killer: Specially formulated to kill roots without harming trees, foaming root killers expand in water, dissolving roots in the pipes. Follow the product instructions for proper use.
3. Copper Sulfate: Another way to kill roots in your drains is copper sulfate. Note, it can be toxic so use caution! The common approach is to pour ½ of a cup into your toilet and flush the toilet a few times so the water goes into your drains and saturates the roots for approximately 5 hours. Another caution, make sure no children or pets are around when using copper sulfate. 
4. Inspect, Remove, and Repair: For DIY enthusiasts, digging up and removing the damaged pipe and roots can be an option, though it’s challenging. Ensure proper pipe repair after removal.
5. Hire a Professional: If DIY methods fail, professional plumbers can efficiently handle the situation using several methods, including using hydro jetting. They can locate the damage, remove roots, and repair the pipes, offering a permanent solution.

Preventing Tree Roots in Sewer Lines

Preventive measures can help avoid future root invasions:

• Regular Maintenance with Root Killer: Use a foaming root killer bi-monthly as per the manufacturer’s instructions.
• Replace Old Pipes: Older homes might benefit from replacing outdated pipes with modern materials to prevent root infiltration.
• Careful Planting: Avoid planting trees directly over or near sewer lines, especially if the lines are old.

Conclusion

Battling tree roots in sewer lines can be daunting, but with the right strategies, it’s possible to manage or prevent the issue. For persistent problems, professional assistance is always available to ensure your plumbing system remains functional and efficient. Contact the team at My Plumber Kelowna for help with sewer and drainage problems at your Kelowna property.