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Insert the Powered Drain Snake — Clear Blockages in the Toilet Drain Line

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Gurgling Toilet: Troubleshooting and Repair Guide · Step 2 of 2

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In this video

When plunging fails to clear the drain, the next step is to use a powered drain snake, also known as a drain auger. Switch to a more protective pair of gloves. Carefully insert the flexible metal cable of the drain snake into the sink drain opening, feeding it down until you feel resistance, which indicates you have reached the clog.

Goal: Drain Unclogging (Standard)

  • For many bathroom sinks, you may need to remove the pop-up stopper to get the drain snake head into the pipe.
  • The metal snake can scratch the surface of a porcelain or ceramic sink. Feed it in carefully.

Used in this video

  • Powered Drain Snake (brand: Milwaukee, Tool Type: Snake/Auger, Power Source: Electric)To physically break up and remove a stubborn drain clog.
  • Work Gloves (Gloves Material: Rubber)To protect hands while operating the powered snake.
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FAQs

How can I quickly determine if my gurgling toilet is due to a vent issue or a drain line clog?

Check other drains in your home. If sinks, showers, or other toilets are also draining slowly or gurgling, it points to a main drain or vent stack issue. If only the toilet gurgles, the clog is likely isolated to its drain line.

What essential safety precautions should I take before climbing onto the roof to inspect the vent stack?

Always use a sturdy, properly secured ladder and have someone spot you. Wear non-slip shoes, avoid working in wet or windy conditions, and be mindful of power lines. Ensure the ladder extends at least three feet above the roofline.

Is a special camera tool necessary to inspect the vent stack, or can I clear it without one?

While a camera (like a plumber's snake with a camera) can precisely locate a clog, it's not strictly necessary. You can often clear a vent stack by carefully flushing water down it with a garden hose or using a plumber's snake, feeling for obstructions.

My plumbing snake isn't clearing the drain clog after several attempts. What should I do next?

If your 25 ft. plumbing snake isn't reaching or clearing the obstruction, the clog might be deeper in the main drain line or more stubborn than anticipated. At this point, it's often best to consult a professional plumber who has longer augers and specialized equipment.

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Or if you have a manual snake, sometimes you can just straight down through the top.

Auto-generated transcript. May contain errors.