How to Snake a Drain Like a Pro
To snake a drain, insert the end of a drain auger (hand-crank or drill-powered) into the drain opening or P-trap cleanout, feed the cable forward while cranking the handle clockwise, and push through the clog until you feel resistance drop. Pull the cable back, clean off debris, and run hot water for several minutes to flush the line. A 25-ft. hand auger ($25–$50) handles most sink and tub clogs. For main sewer lines, a powered drum auger with a 50–100 ft. cable is needed — this is usually a job for a professional ($150–$500).
Cost Breakdown
| Service | Low | High | Notes |
|---|---|---|---|
| Plastic drain stick (hair removal tool) | $3 | $5 | Barbed strip for bathroom sink and tub hair clogs |
| Hand-crank drum auger (25 ft.) | $25 | $50 | Standard DIY drain snake; handles most sink and tub clogs |
| Toilet auger (closet auger) | $15 | $30 | Rubber-booted tip protects porcelain; designed for toilet clogs only |
| Professional drain cleaning | $150 | $500 | Powered cable machine; includes service call |
| Sewer camera inspection | $100 | $300 | Identifies root intrusion, pipe damage, or bellied sections |
Choose the Right Snake
- Drain stick / zip tool ($3–$5): A thin plastic barbed strip for pulling hair from bathroom sink and tub drains. Not a true snake, but solves the most common bathroom clog instantly.
- Hand-crank drum auger ($25–$50): A 25-ft. flexible steel cable in a canister with a hand crank. Works for sinks, tubs, and shower drains. The standard DIY tool.
- Drill-powered auger ($30–$60): Same cable, but attaches to a cordless drill for faster cranking. Reduces arm fatigue on tough clogs.
- Toilet auger / closet auger ($15–$30): A short auger with a protective rubber boot that won't scratch porcelain. Designed specifically for toilet clogs — never use a standard drain snake in a toilet.
- Powered sewer machine (rental $40–$75/day): A motorized drum with a 50–100 ft. cable and interchangeable cutting heads. For main line clogs from roots, grease buildup, or collapsed pipe. Dangerous if misused — consider hiring a pro.
Step-by-Step: Snaking a Sink or Tub Drain
- Remove the drain stopper or strainer: Most pop-up stoppers lift or twist out. Tub drain covers unscrew or pry off. Remove visible hair and debris from the opening first.
- Feed the cable into the drain: Push the cable in until you feel resistance at the P-trap bend. Continue feeding — the cable will navigate the trap with steady pressure.
- Crank through the clog: When the cable hits the blockage, crank the handle clockwise while pushing forward. The auger tip will either bore through the clog or hook onto it. You'll feel a change in resistance when you break through.
- Pull back and clean: Slowly retract the cable. Hair, grease, and debris will come out on the cable and auger tip. Have a bucket and rag ready.
- Test the drain: Run hot water for 2–3 minutes at full pressure. The water should drain quickly with no backing up. If it's still slow, feed the cable through again — some clogs need multiple passes.
Tips for Tough Clogs
- Access through the P-trap cleanout: If the drain opening is narrow or the clog is past the trap, place a bucket under the P-trap, unscrew the cleanout plug (or remove the entire trap), and feed the cable directly into the wall pipe.
- Don't force the cable: If the cable kinks or won't advance, pull back a foot and try again. Forcing it can damage pipes — especially older galvanized or thin-wall PVC.
- Grease clogs: After snaking, flush with boiling water and dish soap to dissolve remaining grease coating the pipe walls.
When to Call a Plumber
Call a professional if multiple drains are backing up simultaneously (indicating a main line clog), if the auger won't advance more than a few feet (possible pipe collapse or offset joint), or if you see sewage backing up into the lowest drain in the house. A professional drain cleaning with a powered machine runs $150–$500. Camera inspection of the line ($100–$300) identifies root intrusion, bellied pipe, or other structural problems.
Related Questions
Can a drain snake damage pipes?
A hand-crank auger is safe for most pipes when used properly. Avoid forcing the cable if it won't advance — kinking it inside the pipe can scratch PVC or puncture corroded galvanized pipe. Powered sewer machines with cutting heads can damage pipes if operated by someone inexperienced, which is why main line snaking is best left to professionals.
Should I use a drain snake or a chemical drain cleaner?
A snake is more effective and safer for your pipes. Chemical drain cleaners (Drano, Liquid-Plumr) can dissolve minor clogs but generate heat that can soften PVC joints, corrode older metal pipes, and are hazardous if they splash. For recurring clogs, snaking removes the blockage rather than partially dissolving it.
How do I snake a drain if I can't reach the clog?
If a 25-ft. cable doesn't reach the clog, the blockage is likely in the main drain line beyond the branch piping. Access the main cleanout (usually a capped pipe near the foundation or in the basement) and use a longer cable (50–100 ft.) or call a plumber with a powered machine.