Drain Snake (Plumbing Auger)

A drain snake (also called a plumbing auger or drain auger) is a flexible steel cable with a corkscrew or cutting tip used to break up, retrieve, or push through clogs in drain pipes. It's the most common tool for clearing blockages in sinks, tubs, toilets, and main sewer lines.

Types of drain snakes:

• Hand-crank snake (drum auger) — a 25–50 ft cable in a drum, cranked manually; used for sink and tub clogs in 1.5–2-inch drain lines
• Toilet auger (closet auger) — a short, rigid shaft with a flexible cable designed to clear toilet clogs without scratching the porcelain bowl
• Motorized drain machine — electric-powered, 50–100 ft cable with interchangeable cutting heads; used by plumbers for main sewer lines (3–6-inch pipe)
• Sectional drain machine — professional tool for large commercial lines; cable is assembled in 7.5 ft sections

Drain snake vs. hydro jetting: a drain snake punches through or retrieves a clog — it doesn't clean the pipe walls. A grease or soap clog that a snake clears can re-accumulate within weeks. Hydro jetting scours the pipe walls clean and provides longer-lasting results. For a first-time clog, a snake is appropriate. For recurring clogs (3+ times in 12 months), hydro jetting is the correct solution.

DIY snaking limits: hand snakes sold at hardware stores are effective for simple sink clogs within 25 feet. Main line clogs, toilet clogs deep in the drain, or clogs involving roots require a professional motorized machine. Forcing a consumer snake into a 4-inch sewer line is ineffective and can damage the snake cable.

Cost: professional drain snaking runs $150–$350 for a standard sink or tub clog; $250–$500 for a main sewer line.