What Is a Drain Snake?
A Drain Snake is a flexible plumbing tool that clears blockages from drain pipes. The cable moves through the pipe and breaks apart or pulls back material that stops water flow. Plumbers choose different cable sizes and heads based on the drain, the blockage, and the pipe condition.
Quick Facts About Drain Snake
Category
Drain cleaning tool
Used for
Clearing drain blockages
Common confusion
Different from hydro jetting
Also called
Plumbing Snake, Drain Auger
Often discussed with
Drain Cleaning, Sewer Line Cleaning
Key Takeaways About Drain Snake
- A flexible cable reaches blockages inside drain pipes.
- Different heads handle different blockage materials.
- A drain snake is not the same as a hydro jet.
How Drain Snake Works

A Drain Snake uses a coiled cable that enters a drain opening. The cable moves through the pipe as a plumber turns or powers it. A cutting, grabbing, or boring head works through the blockage and helps restore the path for wastewater.
Related glossary terms: Cleanout, Trap, Sewer Lateral.
The tool must match the drain and the blockage. A small hand snake may suit a sink drain, while a powered machine may reach deeper lines. A cleanout can provide a direct access point for larger drain work.
Snaking can open a blocked pipe, but it may not remove every buildup. Grease, roots, scale, or a damaged pipe can cause the blockage to return. Hydro jetting uses pressurized water to wash buildup from the pipe walls.

Expert Note
When we use a drain snake, we consider the drain opening, pipe path, and blockage type. We choose a suitable cable and head, then check drainage after clearing the obstruction. If the blockage returns, we look for deeper buildup, root entry, or pipe damage before repeating the same method.
Drain Snake in Practice: A Real-World Example
A kitchen sink may drain slowly because grease has collected inside the branch line. A plumber can guide a drain snake through the opening, work through the buildup, and test the sink after water begins to flow.
Related Services
Related Terms
Cleanout
A cleanout is an accessible opening in a drain or sewer pipe. Its removable cap lets…
Trap
A trap is a curved or chambered section of drainpipe that holds water and blocks sewer…
Sewer Lateral
A sewer lateral is the private underground pipe that carries wastewater from a building's plumbing to…
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