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How to Unclog the Drain Pipes to a Street

Dean Roughton

Unclogging drain pipes to a street involves more than just dumping chemical drain cleaner down the drain. The two main reasons clogs occur in drain pipes leading from the house to the street are sludge build up and root growth; the likelihood of root growth in the pipes increases with the age of the house.

Renting the proper equipment can save money.

The key component to unclogging drain pipes to the street is to have the proper equipment. An electric rooter, also called an auger, will work to dislodge sludge build up and to cut away root growth.

  1. Rent an electric sewer rooter, also called an auger, that is rated for drain lines at least up to 4 inches. Rooters can be rented at many hardware stores or plumbing equipment rental stores. Most rentals are either by the half day or the whole day.

  2. Safety goggles should be in the tool chest of every home owner.
  3. Put on the work gloves and safety goggles. Once you begin rooting, the drain pipe contents may splatter, creating a hazard to your eyes.

  4. The pipe wrench's jaws expand to a greater width than adjustable wrenches.
  5. Unscrew the sewer drain cap using the pipe wrench. The sewer drain cap is a threaded insert with a large cube protruding from the top to allow the pipe wrench to grip it. It is typically located within a few feet of the exterior of the foundation. If you cannot locate it, look under the house and find where the drain pipe goes through or under the foundation.

  6. A grounded outlet has a reset switch in its center.
  7. Plug the electric rooter into a grounded outlet since this process involves a wet area. In the event of a short circuit due to water exposure, the outlet will trip. When it is safe to resume, reset the outlet by pushing in the reset button.

  8. Insert the rooter line into the drain where you removed the drain cap and push it forward only about a foot at a time. Slow insertion will prevent damage to the rental equipment. Stop pushing the rooter line once it reaches the blockage and becomes difficult to push.

  9. Turn on the electric rooter to begin rooting the drain. Root only a short distance at a time before running water through the pipe. This will help wash away the accumulated debris and make it easier to continue rooting.

  10. Run water continuously through the pipe for two to three minutes after you have finished rooting. This will wash away the debris and help to clean the rooter line before extraction.