How to Remove Roots From Septic Tank Field Lines

PVC sewer pipe ready to be installed

Drain field pipes can become clogged when it is built too close to existing trees or trees are planted on or near the drain field. Pipes in the field lines must remain clear of debris. Roots are one of the main culprits causing much damage to septic lines over the years. Removing roots from the drain pipes will allow the sewer water to flow freely.

Things You'll Need

• Shovel
• Drain snake
• 5% copper sulfate

Instructions

1. Locate the drain field distribution box (d-box). Construction blueprints can help.

2. Dig down to the d-box and remove the dirt from the top and sides of the d-box lid.

3. Insert a drain snake into each line. Push the snake through as far as it will go. You should be able to push it at least 10-feet into the pipe.

4. Look on the surface of the ground around the area of the d-box. Identify any trees in the area. Trees do not need to actually be on the field drain to clog a pipe, because roots travel over time.

5. Pour 5% copper sulfate into each pipe in the d-box that is suspected to be clogged with roots. This will disintegrate the roots if they are not too large.

6. Replace d-box lid and backfill dirt.

Tips & Warnings

• Call a professional if the copper sulfate does not do the job.

• If the drain pipes are too clogged with roots you should call a professional to examine the system.

• Acquire more than one opinion.

References

• Lowes: 5 Steps to Dealing with Invasive Tree Roots
• Reliable Remodeler: Repair Main Drain Pipe -- Clearing the Clog

Resources

• University of Maryland Extension: Septic Systems and Their Maintenance