How To Protect Your Concrete Septic Tank From Tree Roots

Tree roots are naturally drawn to sources of water and nutrients, making your septic tank an attractive target. In their search for moisture and sustenance, the roots can find tiny cracks or seams in your septic system and begin to infiltrate. As they grow, they exploit these weaknesses, causing significant damage in several ways.

Roots can penetrate and crack the tank, compromising its structural integrity. This can lead to leaks and a reduction in the tank’s ability to contain waste effectively. Additionally, roots can obstruct pipes, causing blockages that disrupt the flow of waste and wastewater. In more severe cases, roots can invade and block the drain field, the area where effluent is dispersed into the soil for natural filtration.



The consequences of root infiltration extend beyond just the physical damage to your septic tank. Blocked pipes and cracked tanks can lead to sewage backups in your home, creating unpleasant and unsanitary conditions. Moreover, this leads to costly repairs and can result in serious environmental hazards.

Recognising the early signs of tree root infiltration can save you a lot of hassle and expense. Here are some key indicators to watch for:

• Slow Drains: If your sinks, tubs or toilets are draining slowly, this could be a sign that roots are obstructing the pipes.
• Unpleasant Odours: A noticeable sewage smell around your home or yard often indicates a problem with your septic system.
• Lush Patches of Grass: If certain areas of your lawn are unusually green and lush, it may signal that roots have found a water source from a leaking tank.
• Soggy Spots in the Yard: Unexplained wet patches or areas of standing water can indicate that roots have damaged the septic tank or pipes, causing leaks.
  

Prevention is key to protecting your septic tank from tree roots. Here are some practical steps you can take to prevent tree roots in septic tanks and protect your concrete septic system.

When installing a new septic tank, location is crucial. Ensure that the tank is placed far from trees and large shrubs. Consult with professionals to determine the safest and most effective placement.

Installing a physical barrier between your septic tank and nearby trees can prevent roots from reaching the tank. Materials like metal or plastic can be buried vertically along the sides of the tank to block root growth.

Chemical root killers can discourage root growth around your septic tank. These substances can be applied directly to the septic system, but it’s important to use them sparingly to avoid harming the beneficial bacteria in the tank.

Be mindful of what you plant near your septic system. Opt for plants with shallow root systems and avoid trees with aggressive roots, such as willows, poplars and maples. Consult a landscaper for advice on suitable plants for areas near septic systems.

Proper maintenance is important for preventing root damage and ensuring your septic system’s longevity. Here are some steps to include in your maintenance routine:

• Scheduled Pumping: Pump your septic tank regularly every 3-5 years to remove sludge and prevent overflow, which can attract roots.
• Inspect the System Annually: Annual inspections by a professional can identify and address potential problems before they become severe.
• Monitor Water Usage: Excessive water can overload your septic system, causing it to fail and potentially attract roots. Be mindful of water usage and fix any leaks promptly.
• Avoid Flushing Non-Biodegradable Items: Items like wipes, sanitary products and chemicals can clog the system, making it more susceptible to root damage.