Tree root invasion of sewer lines is a common problem in homes where trees are in close proximity to underground drain lines, says Invest West Management. When tree roots grow into a sewer line, they not only destroy the line but can impair the structural integrity of the building. Why do tree roots grow into a sewer line? How can you prevent this problem?
Why do trees invade a sewer line?
Tree roots do what tree roots are meant to do: provide much-needed moisture, nutrients, and oxygen for the tree’s survival. To do this, they must explore every potential source of moisture, nutrients, and oxygen in the surrounding soil.
This includes nearby sewer lines, which coincidentally are a great source of moisture and nutrients. If there are plant roots in the vicinity of a sewer line, they will sense the presence of water and nutrients inside the pipe.
That is because sewer lines emit a different heat signature than the surrounding areas. Sewer lines also release sewer vapors into the soil. If there is a leaky or weak section in the sewer line, tree roots will exploit it to infiltrate the line, or they can crush the pipe.
Impact of tree root intrusion into a sewer line
The main effect of tree root intrusion into the sewer line is persistent clogs and blockages. These can manifest in the following ways:
- Multiple drain clogs in the home
- Stubborn drainage problems that refuse to go away
- The odor of sewer gases inside the house
- Strange noises when you flush the toilet
- Fluctuating water levels inside the toilet bowl
- Sewer backup inside the home
Tree root invasion of a sewer line will also damage the line, resulting in the following issues:
- Soggy or wet patches in the yard
- Pest infestation of the property
- Sinkholes in the yard
- Damage to the foundation and other structures
How do you know if there are tree roots inside your sewer line? If some of the above-listed problems are present in your home, you may want to do a camera inspection of your sewer line. A sewer camera inspection is the most reliable way to check for tree roots in a sewer line.
How to prevent tree roots from intruding into your sewer line
If you have trees or large shrubs with invasive roots on your property, there is a chance that you will have problems with tree roots intruding into your sewer line. But, of course, this depends on whether the trees and shrubs are growing close to the location of the sewer line.
The best way to prevent tree root invasion of your sewer line is to remove the trees. But getting rid of your trees could have an adverse effect on your home’s curb appeal, its indoor air quality, and ultimately on the market value of the property. What are your other options?
Install a tree root barrier
These plastic, metal, or stone structures act as blockades between tree roots and your sewer line. They are typically installed around the base of a tree to prevent root growth in a certain direction. This is the preferred method for older trees with established root systems. Moreover, it does not pose any environmental risks. It can even provide long-term protection for the tree.
Tree root killers and inhibitors
These include a range of natural or synthetic materials that can kill existing tree roots and prevent the growth of new ones. They are used to remove tree roots that have already invaded the sewer line. Natural tree rook killers don’t pose a threat to the environment, and they include rock salt, Epsom salt, and boiling water. Synthetic or chemical tree root killers are more effective, but they leave residues that can pose problems to the environment.
Fix sewer line leaks at once
Every leaky or weak section in your sewer line is an invitation to tree roots. Finding and fixing them at once is the best way to protect the line from possible invasion by tree roots. To find leaks before tree roots take advantage of them, you need a plan for inspecting and maintaining your sewer line on a schedule. Regular sewer line inspections are the only way to detect leaks on time.
Clean your drains regularly
Drain lines that are cleaned regularly cannot accommodate debris or encourage tree root intrusion. This is because cleaning your sewer line regularly reduces the risk of clogs and leaks. Also, if tree roots make their way into the sewer line, hydro jetting or sewer rodding the sewer line will help you remove the roots and restore the function of the sewer line.
Lastly, in your battle against tree roots invasion of your sewer line, you need the foresight and experience of a qualified plumber. A competent plumber will detect potential problems before you see them and help you take proactive steps to protect your sewer line from tree roots.