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Use a Drain Auger to Clear the Clog — Use Drain Auger for Stubborn Clogs

Intermediate4 hours

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How to Clear a Clogged Plumbing Vent Stack on Your Roof · Step 5 of 6

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In this video

If you are experiencing any of the above symptoms, attempt to clear the blockage using a plumbing snake, also known as a drain auger. Wear protective gloves. Insert the flexible cable of the auger into the affected drain or cleanout pipe. Push the cable in until you feel resistance from the clog. Turn the handle of the auger to rotate the cable, which helps break up or hook onto the blockage. Carefully retract the cable to remove the debris. The video shows a manual drain auger being used in a sink to demonstrate the process.

Goal: Drain Unclogging

  • The Breeze Drain Auger is a flexible plumbing snake that can be used to clear clogged drains or vent pipes.

Used in this video

  • Drain Auger (brand: Breeze, Tool Type: Drain snake, Tool Functionality: Snaking/Augering, Power Source Type: Manual)Clearing clogs from pipes and drains.
  • Protective Gloves (brand: generic, Safety Equipment: Gloves)Protecting hands from dirty water and debris.
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FAQs

What are the most critical safety precautions I need to take before getting on my roof to clear the vent stack?

Prioritize a stable ladder placement on level ground and always use non-slip footwear, like the Shoes For Crews listed, to prevent falls. Avoid working on wet, icy, or extremely windy days, and consider having a helper spot your ladder and assist. Wear heavy-duty work gloves to protect your hands from debris and potential sharp edges.

How can I be sure I've identified the correct plumbing vent stack on my roof?

Plumbing vent stacks are typically 1.5 to 4 inches in diameter and usually located directly above bathrooms, kitchens, or laundry rooms. If unsure, have someone run water in a sink or flush a toilet while you listen near the vent pipe on the roof for gurgling or suction sounds that indicate it's connected to that fixture. You can also trace visible pipes in the attic if accessible.

Do I really need a specialized drain auger, or can I clear the clog with just a garden hose?

A garden hose with a high-pressure nozzle is often effective for clearing minor clogs like leaves or small nests. However, for stubborn blockages, such as compacted debris or animal nests deeper within the pipe, the THEWORKS 3/8 in. x 25 ft. Drain Auger is essential. It allows you to physically break apart and retrieve the obstruction that water alone can't dislodge.

What should I do if flushing with the garden hose doesn't clear the clog?

If the garden hose method doesn't work, it's time to use the drain auger. Carefully insert the auger into the vent pipe, feeding it down until you meet resistance. Gently crank the auger to break up the clog, then slowly pull it back, hopefully retrieving the obstructing material. Repeat as needed, flushing with water periodically.

Use a Drain Auger to Clear the Clog — How to Clear a Clogged Plumbing Vent Stack on Your Roof (Step 5, Video 1) | Stesso