How to Unclog a Toilet: 4 Methods That Work

Before You Start: Prevent an Overflow

If your toilet is clogged and the bowl is full of water, do not flush again. A second flush on a clogged toilet sends another 1.6 gallons into a bowl that has nowhere to drain, and you'll have sewage water on your bathroom floor.

First, take the tank lid off and lift the flapper shut if water is still flowing into the bowl — this stops the fill immediately. Then turn off the water at the shutoff valve behind the toilet (turn clockwise). Now you have a stable situation: no more water coming in, and whatever is in the bowl stays put while you work.

Lay towels around the base of the toilet. Even with a careful approach, plunging and other methods can splash. Wear rubber gloves — this is non-negotiable when working with a clogged toilet. With the water off and towels down, try each method below in order until the clog clears.

Method 1: The Plunger (Try This First)

A plunger is the fastest and most reliable way to clear a toilet clog. But you need the right kind. A flat-cup sink plunger won't seal in a toilet drain. You need a flange plunger (also called a bell plunger) — it has a soft rubber extension that folds out from inside the cup, creating a shape that fits into the curved drain opening at the bottom of the bowl.

Pull the inner flange out so the plunger looks like a bell or mushroom. If the water level in the bowl is very high, bail some out with a cup into a bucket — you want enough water to cover the plunger cup, but not so much that it splashes over the rim when you push.

Press the plunger firmly into the drain opening, making sure you have a complete seal all the way around. The first push should be gentle — you're pushing air out of the plunger cup. After that, give it several strong, steady pumps. Push and pull firmly, keeping the seal intact. You're forcing water pressure back and forth through the trap to break up or dislodge the clog.

After 15 to 20 pumps, pull the plunger out and see if the water drains. If it starts to flow, you've cleared it. Turn the water back on and flush to confirm. If the water just sits there, try another round of plunging with more force. Most clogs clear within two or three rounds.

Method 2: Dish Soap and Hot Water

If you don't have a plunger (or the plunger isn't working), dish soap and hot water can break up soft clogs — especially those caused by too much toilet paper or organic waste.

Squirt a generous amount of liquid dish soap into the bowl — about a quarter cup. Dawn or any grease-cutting dish soap works well. The soap acts as a lubricant, coating the clog and the walls of the trap to help everything slide through.

While the soap sits, heat a pot or bucket of water on the stove. You want it hot but not boiling — about the temperature of a hot cup of tea. Boiling water can crack cold porcelain, so let it cool for a minute after boiling if you're using a kettle.

Carefully pour the hot water into the bowl from about waist height. The height gives the water momentum as it hits the clog. The combination of soap lubrication and hot water pressure can soften and push through many soft-matter clogs.

Let it sit for 10 to 15 minutes. The soap continues working on the clog while the hot water keeps things softened. After waiting, check if the water level has dropped. If it has, the clog is dissolving. You can try flushing or adding another round of hot water. If the water hasn't budged, move on to the next method.

Method 3: Baking Soda and Vinegar

The fizzing reaction from baking soda and vinegar can help break up clogs, especially organic blockages. It's not as powerful as a plunger, but it works when you need a hands-off approach or don't have other tools available.

If the bowl is full, bail some water out first — you need room for the mixture to fizz without overflowing. Remove enough water so the bowl is about half full.

Pour one cup of baking soda into the bowl. Let it sink to the bottom — it'll settle around the drain opening where the clog is. Then slowly pour two cups of white vinegar into the bowl. Pour slowly because the reaction fizzes immediately, and dumping it in fast will send foam over the rim.

The fizzing action agitates and partially dissolves organic matter in the clog. Let it work for 20 to 30 minutes. For stubborn clogs, you can follow up with a pot of hot (not boiling) water poured from waist height to add pressure behind the loosened material.

After 30 minutes, check the water level. If it's dropped, try a flush. If not, you may need to repeat the process or move on to a toilet auger.

This method works best on toilet paper clogs and soft organic matter. It won't help with toys, wipes, or solid objects blocking the trap.

Method 4: Toilet Auger (For Stubborn Clogs)

If the plunger, soap, and baking soda methods haven't worked, you need a toilet auger. Also called a closet auger, this is a short drain snake — typically three feet of flexible cable inside a curved metal tube — designed specifically for toilets. The curved tube protects the porcelain from scratching, and a crank handle on top lets you work standing up.

Wear rubber gloves. Feed the cable end into the drain opening at the bottom of the bowl. Slowly crank the handle clockwise while pushing the cable down. You'll feel it navigate the curves of the built-in trap. When you hit resistance, that's the clog. Keep cranking — the auger tip will either push through the blockage, grab onto it, or break it apart.

Once you've worked the full three feet of cable through, slowly retract it by cranking in reverse. The auger may pull out whatever was causing the clog — we've pulled out baby wipes, excessive toilet paper masses, dental floss tangles, and even small toys.

Flush the toilet to test. If the water drains freely, you're done. Run the auger through one more time to make sure the trap is completely clear, then flush again to confirm.

A toilet auger costs $10 to $30 at any hardware store and is a tool every homeowner should have. It clears about 90% of clogs that a plunger can't handle.

What NOT to Do with a Clogged Toilet

A few common "fixes" that actually make things worse:

Don't use chemical drain cleaners like Drano or Liquid-Plumr. These products are designed for sink and tub drains, not toilets. They contain harsh chemicals that can damage the wax ring seal, corrode older pipes, and create dangerous fumes in a small bathroom. They also rarely work on toilet clogs because the clog is in the built-in trap, and the chemical just sits on top of the standing water without reaching it.

Don't flush repeatedly hoping the clog will clear. Each flush adds more water to an already-full bowl, and you'll end up with sewage on your bathroom floor. If one flush didn't clear it, stop and use a mechanical method.

Don't use a wire coat hanger as a snake. An unprotected wire will scratch and gouge the porcelain inside the bowl. Those marks are permanent. A toilet auger has a protective sleeve specifically to prevent this.

Don't pour boiling water directly into the bowl. Rapid temperature changes can crack cold porcelain. Use hot water — not boiling — and pour it slowly.

When to Call a Professional

If you've tried all four methods and the toilet is still clogged, the blockage is likely beyond the toilet's built-in trap — down in the drain line itself. A three-foot closet auger can't reach it. At that point, you need a professional with a longer power snake or a sewer camera to locate and clear the obstruction.

Other situations that need a pro:

Multiple fixtures are draining slowly. If the toilet, tub, and sink are all backing up, the clog is in the main drain line, not just the toilet. Sewage is coming up through the drain. This indicates a main line blockage or a problem with the sewer connection. Don't try to fix this yourself — shut off the water and call immediately. The toilet clogs frequently. If you're plunging the same toilet every week, there's an underlying issue — a partially blocked trap, an undersized drain line, or a problem with the sewer vent. Our guide on toilet keeps clogging covers the recurring causes in detail.

At The Toilet Guys, clog clearing starts at $100 for standard clogs. Drain line work with a power snake is $150 to $350 depending on the length and severity. We serve all of Oakland and Macomb County and carry everything we need on the truck. If the clog reveals a bigger problem — like a collapsed pipe or root intrusion — we'll explain exactly what's going on and give you options. No surprise charges, just straight talk.