Do this when the tree is actively growing.
Drain field clogged with roots.
How to unclog a septic leach field method 1 of 3.
Spongy or soaked lawn.
Locate and uncover the distribution box for your leach field.
The field lines should be relatively dry prior to treatment.
To unclog your tree roots choose the right equipment for the job.
Cheap drain fix septic tank systems.
Septic tank systems do not last forever and replacing one is a very expensive proposition.
Sponginess or visible water in the lawn near the septic tank is another indication that roots have blocked the leach field pipes especially the main one leading from the tank.
Typical dose rate is 2 pounds for every 50 feet of 4 diameter pipe.
Pour glyphosate into each hole.
If you suspect that your drain could have tree roots or another solid object clogging the line and you believe that the drain is in good physical condition the best solution is usually to use a large drum auger also called an electric sewer snake or rooter with a root cutting blade to clear the line or to hire a licensed.
Cut up the tree and remove.
A clogged leach field.
How to remove roots from a leach field 1.
Dig a hole at the end of your leach system pipes to expose them.
Drill five or six holes into the stump within 15 minutes of cutting down the tree.
Saw through the tree trunk close to the ground using the chainsaw.
Septic leach field lines clogged by tree roots.
Eventually leach fields become clogged because the roots from trees and other vegetation.