How to Snake a Drain Yourself (Step by Step)

Learning how to snake a drain is one of the most useful DIY plumbing skills a homeowner can pick up. A drain snake, also called a plumber's auger, is a flexible steel cable that you feed into a clogged drain to break up or hook out the blockage. A basic hand snake costs $25 to $40 at any hardware store, takes about 15 minutes to use, and handles the hair, soap, and grease clogs that cause most slow drains. This guide walks you through the whole process for sinks, tubs, showers, and toilets.

What You Will Need

For most fixture drains, a 25-foot hand-crank drum auger with a 1/4-inch cable is the right tool. It costs $25 to $40 and stores neatly in a garage or under a sink. For toilets, you need a separate tool, a closet auger, which has a curved guide tube that protects the porcelain. That runs $30 to $50.

Gather your supplies before you start: the auger, rubber gloves, a bucket, old towels, a flashlight, and a screwdriver for removing drain covers or stoppers. Keep a plunger nearby too, since plunging after snaking helps flush loosened debris down the line. Wear clothes you do not mind getting dirty, because drain work is messy by nature, and lay towels around the work area to catch drips.

One thing to skip: chemical drain cleaners. Do not pour them in before snaking. Caustic chemicals can splash back onto your skin and eyes while you work the cable, and they rarely dissolve the hair and soap mats that a snake removes mechanically anyway. If you already used a chemical cleaner, wait at least several hours, flush with plenty of water, and wear eye protection.

Choosing the Right Drain Snake

Drain snakes come in three main types, and using the wrong one makes the job harder. The hand-crank drum auger (25 feet, 1/4-inch cable) is the homeowner standard for sinks, tubs, and showers. The drum keeps the cable contained and the crank gives you the rotation needed to work through clogs.

The closet auger (3 to 6 feet) is purpose-built for toilets. Its curved vinyl-sheathed tube guides the cable through the toilet trap without scratching the porcelain. Never use a regular drum auger in a toilet: the bare cable will scratch the bowl and cannot navigate the tight trap bends.

The power auger or drain machine (50 to 100 feet, 3/8- to 1/2-inch cable) is for main lines and serious blockages. These are rentable for $50 to $80 per day, but they are heavy, powerful, and capable of injuring hands or damaging pipes in inexperienced hands. If your clog needs this class of machine, that is usually the point to call a professional with a drain snake service instead.

For hair clogs specifically, consider a $5 plastic hair removal tool, a barbed strip you push down the drain and pull back up. It is not a true snake, but it clears most shower and bathroom sink clogs in seconds with zero skill required.

How to Snake a Sink Drain: Step by Step

Step 1: Remove the stopper and cover. Pull out the sink stopper or unscrew the drain cover. In a bathroom sink, you may need to disconnect the pivot rod under the sink to lift the stopper out. In a kitchen sink, remove the strainer basket. Clearing the opening gives the cable a straight shot.

Step 2: Feed the cable. Pull about a foot of cable from the drum, push the tip into the drain, and start turning the crank clockwise while gently pushing forward. The rotation is what does the work: it lets the tip corkscrew through bends and into the clog. Keep the drum close to the drain opening so the cable does not kink.

Step 3: Work through resistance. When you feel the cable hit something, do not force it. Keep cranking and apply slow, steady forward pressure. You will often feel the tip bite, then push through. For a hair clog, the auger tip snags the mass. For grease, the rotation breaks it apart. Work the cable back and forth a few inches to grind through stubborn spots.

Step 4: Retract slowly. Once you have fed several feet past the resistance point, or the cable moves freely, crank counterclockwise while pulling back slowly. The clog often comes out wrapped around the tip, which is disgusting and deeply satisfying. Wipe the cable with a towel as it retracts into the drum.

Step 5: Flush and test. Run hot water for two to three minutes to flush loosened debris down the line. If the drain runs freely, you are done. If it is still slow, repeat the process once more; the second pass often catches what the first loosened. Two failed attempts means the clog is deeper or tougher than a hand snake can handle.

Snaking a Tub or Shower Drain

Tub and shower drains clog with the same hair and soap scum as bathroom sinks, but the drain cover and the overflow plate change the approach. Start by removing the drain cover, most lift out or unscrew, and try the hair removal tool first. Nine times out of ten, the clog is a hairball sitting right at the drain mouth, and the $5 tool handles it.

If the clog is deeper, feed the snake through the overflow opening rather than the drain itself. Remove the two screws holding the overflow plate, pull the plate and linkage out carefully, and feed the cable down the overflow tube. This gives a straighter path past the tub trap than going through the drain. The technique is the same: crank clockwise, work through resistance, retract slowly.

For standing water in the tub, bail most of it out with a bucket before you start so you can see what you are doing and avoid splashing contaminated water. After snaking, run hot water for several minutes. If the tub has a trip-lever stopper assembly, be careful not to lose the linkage parts down the overflow when you remove the plate.

Shower-only stalls with tile floors work exactly like the tub method through the drain opening. Install a $3 stainless hair catcher over the drain when you finish; it prevents the next clog entirely and empties in seconds.

Snaking a Toilet With a Closet Auger

A toilet clog needs the closet auger, not the drum snake. Step 1: Put on gloves and pull the auger cable back so only the tip shows. Step 2: Place the curved guide tube into the toilet bowl with the curve pointing toward the drain, and push it firmly into the trap opening so the vinyl sleeve protects the porcelain.

Step 3: Crank clockwise while pushing the cable forward into the trap. The auger is short, so you will reach the clog within a few feet. Step 4: When you feel resistance, keep cranking and push through it, then retract by cranking counterclockwise. Step 5: Remove the auger and flush. If the bowl drains normally, the clog is cleared; if water rises, repeat once.

Try a plunger before the auger: a flange plunger with five or six vigorous pumps clears many toilet clogs without any tools. If neither works after two attempts each, the blockage may be in the main line or the toilet trap may hold an object like a toy or sanitary product. At that point, the toilet may need to be pulled, which is a good time to call a plumber.

If the Snake Does Not Work

A hand snake fails for a few predictable reasons. The clog may sit beyond the 25-foot reach of a homeowner auger, deep in a branch line or the main drain. It may be a solid object, like a bottle cap or a toy, that the cable pushes past without grabbing. Or the problem may not be a clog at all: a vent blockage, a bellied pipe holding water, or root intrusion all cause slow drains that no amount of snaking fixes.

Before giving up, try plunging vigorously after snaking. The snake loosens the clog and the plunger provides the hydraulic push to move it. For kitchen sinks, a full sink of hot water plus dish soap, followed by plunging, dissolves grease the snake broke apart.

Call a professional when more than one fixture is affected, when sewage backs up into other drains, when the snake will not advance or keeps hitting a hard stop at the same depth, or when you have tried twice with no improvement. A pro brings a longer cable, a camera to see the actual problem, and the experience to clear it without damaging the pipe. Check our drain cleaning hub for what a fair service call should cost before you book.

Safety Tips and Common Mistakes

Wear gloves and eye protection every time. Drain water contains bacteria, and cable snap-back can fling contaminated water into your eyes. Never wrap the cable around your hand: if the tip catches in the pipe, a powered or aggressively cranked cable can wrench your wrist. Keep a loose grip and let the drum do the work.

The most common mistake is forcing the cable. If it will not advance, pull back a foot and try a different angle rather than shoving harder. Forcing kinks the cable, and a kinked cable can jam in the pipe or scratch fixture surfaces. The second most common mistake is cranking counterclockwise while feeding, which can unscrew sectional cables inside the pipe.

Do not snake through a garbage disposal: feed the cable through the drain on the non-disposal side, or remove the disposal trap arm and go in through the wall pipe. And never run a power auger without instruction; the torque can break wrists and crack old pipes. For anything beyond a simple fixture clog, compare your options in our guide to hydro jetting vs snaking so you know what the pro should be doing.

Finish every successful snaking with prevention: hair catchers on tub and shower drains, a sink strainer in the kitchen, no grease down the drain, and a monthly flush of very hot water. Ten minutes of prevention beats another afternoon with the auger.