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How to unclog a toilet without a plunger using this ingenious science hack

Everything you'll need to work this washroom wizardry is probably already in the bathroom with you, which is good if you need to practice this sorcery in secret.


You can clear most clogged toilets with nothing more than soap, hot water and a little bit of time.

Dale Smith/CNET

First off, stay calm. We're going to get through this together, OK? I've been in your, er, situation before. Let me guess: You sneaked away to handle your business and got a little squirrelly with the TP, right? Now you're in a dead panic because there's no trusty plunger behind the toilet. Deep breaths. You've got this. No need to alert anyone just yet.

Although I may not have invented this method of clearing a toilet without a plunger -- you'll find variations at DIY and plumbing blogs galore -- I can testify that it works. In fact, you may want to try it even if you have a plunger, just to avoid the drips, splashes and general unsanitary mess that can come along with using brute force to unclog a toilet. But it's especially handy when you want to take care of the problem as quickly and anonymously as possible. 

This guide is updated occasionally with new, um, insights. Here are the latest:


Dish soap works best, but in a pinch hand soap will do just fine. Then you just need hot water and something to put it into the toilet with, like a small waste bin.

Dale Smith/CNET

You may not have to leave the bathroom at all

To pull off this trick, you'll need three supplies that can be found in almost any bathroom: soap, hot water and a vessel for transferring water to the toilet bowl. Dish soap, piping-hot bathwater and a 5-gallon bucket work best, but if secrecy is paramount and leaving the lavatory would blow your cover, a few pumps from a hand soap dispenser and some hot sink water in a small plastic waste bin will do just fine.

First, get the water in the sink or tub running hot -- like, as hot as it will get. Don't outdo yourself -- no need to boil any water. At those temperatures you could crack the porcelain or, worse, injure yourself. Just let the tap get as hot as it can and you'll be within range.

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While you're waiting for hot water, go ahead and clear everything off the floor -- scales, bathmats... pets. You're going to be very careful to avoid any spills, of course, but better to be safe than soggy.

Let the alchemy begin -- this is the tricky part

Your objective is to get the liquid in the toilet bowl as hot and soapy as possible, as fast as possible, without letting it overflow. This is the step that requires the most finesse.

If you've already tried to flush the clog down a second time and the toilet bowl is positively brimming, add the soap directly to the toilet and then pour in as much hot water you can -- if you can.

If you've got plenty of clearance, however, go ahead and mix up the soap and water first, then pour the soapy brew into the bowl as swiftly as you can. In a perfect storm, the heat and soap will lubricate the clog while the force of the water will push it through. That said, hopefully your reflexes are quick, because you may need to abruptly stop pouring if the clog doesn't immediately dislodge. 


Many bathroom waste bins are small enough to fit under the sink, but if yours is not you can use the tub or shower faucet.

Dale Smith/CNET

A note on the soap: You really can't overdo the soap at this point. You're not going to agitate the solution all that much, so the bowl likely won't erupt in a suds volcano should you go overboard with it. I'm not saying you have to pour the whole bottle of soap in there, but I'm also not saying you shouldn't. Catch my drift?

Do not under any circumstances try to stir it up

Whatever you do, you don't need to stir it up to get the hot, soapy water blended in with the cold, dirty water that was there first. Science is going to take care of that for you via a process called osmosis. If the clog doesn't budge after your soap-water tsunami, your next move is simply to be patient. 

Most toilet backups aren't 100% blocked, so there's a good chance yours will drain slowly at first. Keep an eye on the water level and, as it drops, continue to add more hot water to keep it full. If the clog isn't too stubborn, the added pressure of a full toilet bowl plus the lubricating quality of the soap should help usher the backed-up matter through pretty quickly.

If all else fails, the last ingredient is time

The worst-case scenario is that the clog is wedged too tightly in place and the above steps don't push it down right away. If that happens, you don't have to call a plumber or head to the hardware store just yet. 

Try giving it some time to let that hot soapy water work on breaking up the clog. Walk away, close the bathroom door, and wait 30 to 60 minutes before you check on it again. When you do, you may be pleasantly surprised to find your problem has disappeared down the drain.

Of course, that may mean blowing your cover if you've been trying to unclog the toilet incognito. In that case, the best you can hope for is to not become the butt of any future jokes. Good luck with that, too.

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