What is the difference between a toilet auger and a drain snake?

A toilet auger, also called a closet auger, is the tool made for toilet clogs. RIDGID, a maker of professional drain tools, describes its K-3 toilet auger as built to "quickly clear clogs in toilets or urinals," with a vinyl guard to protect the porcelain from accidental scratching. The cable is short, a kink-resistant half-inch by 3-foot core on that model, and it runs through a rigid tube with a hand crank on top.

That guard is the whole point. A toilet's trap is a tight, curved channel of glazed porcelain, and the guard keeps the metal off the glaze while the cable works through the bend.

A drain snake is a different tool for a different job. It's a long, flexible steel cable with a corkscrew or hook tip, made for sink, tub and shower drains where the pipe is long and narrow and there is room to feed a flexible cable. It has no guard at the bowl. Put a bare cable into a toilet and nothing protects the porcelain from the metal, so scratches are the risk, and a scratched bowl is harder to keep clean.

Check the packaging before you buy. If it doesn't say it's made for toilets, or it has no guard where the cable meets the bowl, treat it as a drain snake and keep it out of the bowl.

Plunge first. Korky, a toilet repair parts maker, says to use a flanged toilet plunger, one designed to seal inside the bowl. It adds that "the real power lies in the pulling motion," which creates suction to help dislodge the clog. Oatey, a plumbing parts maker, gives the same method: push down gently to make a seal, then pull up sharply. If plunging doesn't work, Oatey says an auger reaches deeper blockages through mechanical action.

Then follow these steps, which match Oatey's.

1. 1Turn off the toilet's water supply if the bowl water is rising, then put towels on the floor. Wear rubber gloves.
2. 2Insert the auger carefully into the bowl so the guard sits against the porcelain and nothing scratches it.
3. 3Turn the handle clockwise while gently pushing it down the drain.
4. 4When you feel resistance, you've likely reached the clog. Keep turning to break it up or snag it.
5. 5Slowly pull the cable back out so the blockage comes with it.
6. 6Flush to test. Repeat once if the bowl still drains slowly.
7. 7Clean the auger before you put it away.

Go slowly. Forcing the cable against a hard stop is how it kinks or the guard slips off the porcelain.

How do you know it worked? Korky suggests a simple check: pour water into the bowl. "The added water should flow from the bowl into the drain." Oatey says to flush once more after a successful clear, to make sure the waste moves all the way through the system. If the water rises or drains slowly, the clog isn't fully gone, or it has moved farther down the line. Korky also notes that most clogs aren't completely watertight, so some water slowly drains through, which is worth remembering before you pour in more.

A drain snake is the right tool when the clog is past the toilet. Signs include a bathroom sink or tub that gurgles or drains slowly when you flush, or water that rises in the tub when the toilet runs. Those point to a clog in the branch or main line, not the toilet trap. A quick way to check is to run the sink and tub for a minute and watch the toilet bowl. If the water level in the bowl moves or gurgles, the toilet shares the blocked line, and a closet auger won't fix that.

That's a different job. The cable has to travel down the drain line, often from a cleanout instead of the bowl. Our guides on main line vs branch line clogs and water backing up in the shower when you flush explain how to tell where the blockage sits.

If the toilet still won't clear after plunging and augering, the clog may be past what a hand auger can reach, or the toilet may not be clogged at all. Kohler's troubleshooting page says a clog in the trapway is cleared with a toilet auger or snake. If nothing is blocking the trapway, or the problem continues after snaking, the vent pipe may be restricted. Kohler notes that with a restricted vent, "you will not get a proper flush."

Signs it is bigger than the toilet:

• More than one drain backs up, or one fixture gurgles when another runs.
• Sewage shows up in a tub, shower or floor drain.
• The toilet clogs again within days. Our page on why a toilet keeps clogging covers the common causes.
• You have augered twice and the bowl still holds water high or drains slowly.

Any of those means the blockage is in the drain line or vent. That takes a longer cable, a camera or a roof-level look at the vent, and it's time for a plumber. At HQ Plumbing and Air we can clear a line and tell you the price up front, before any work starts.

One more thing to avoid: chemical drain openers. Oatey warns that "drain cleaners can damage your toilet's porcelain finish or corrode pipes," and it says to skip hot water, bleach and vinegar-and-baking-soda mixes as well. A mechanical tool is the safer path. If you don't have one yet, see how to unclog a toilet without a plunger.

If you only buy one, a closet auger is the better pick for a house, because toilets are where a plain plunger runs out of options and a bare snake does the most damage. A basic hand-crank drain snake is the second one to add for sinks and tubs.

Don't improvise with a wire coat hanger either. Oatey lists makeshift wire hangers among the things that compromise a toilet's integrity, and a hanger has no guard at all.

Both tools are DIY-friendly, and you can use them safely at home once you know which is which. Neither is a lasting fix for a repeat clog. A toilet that clogs over and over usually has a cause behind it, and finding that cause is worth more than clearing it a third time. If a bowl has already overflowed on you, see what to do when a toilet is overflowing.