How to Unclog a Toilet
What You'll Need
- 1
- 1/4 cup
- 1 gallon
- 1 pair
- 1
Step-by-Step Method
Use a flange plunger (the kind with an extended rubber flap). Insert it into the drain opening and create a tight seal. Push down slowly, then pull up sharply. Repeat 15-20 times. The suction dislodges most clogs.
If the plunger does not work: squirt 1/4 cup of dish soap into the bowl. Wait 5 minutes (soap lubricates the clog). Then pour a gallon of hot water (not boiling) from waist height into the bowl. The force plus lubrication often breaks the clog.
If methods 1 and 2 fail, insert a toilet auger (also called a closet auger) into the drain. Crank the handle clockwise while pushing forward. The auger cable reaches clogs deep in the trapway that a plunger cannot reach. Pull back slowly when you feel resistance break.
- Do not pour boiling water into a toilet (cracks porcelain)
- Do not use a regular drain snake (scratches the porcelain coating)
- Do not use chemical drain cleaners in a toilet (they can damage the wax ring seal and are ineffective on solid clogs)
- Do not flush repeatedly when clogged (risks overflow)
- If the bowl is full to the rim, wait 10 minutes. The water level often drops on its own, giving you room to plunge without splashing.
- Keep a flange plunger in every bathroom. Cup plungers (flat bottom) are for sinks, not toilets.
- For recurring clogs: the problem may be in the sewer line, not the toilet. Call a plumber if it happens more than once a month.
Frequently Asked Questions
Call a plumber if the toilet clogs repeatedly (sewer line issue), if water backs up into the shower or tub when you flush (shared drain blockage), or if the auger does not clear the clog after 2-3 attempts.
A flange plunger has an extended rubber flap (flange) that fits into the toilet drain opening, creating a tight seal. A cup plunger has a flat bottom designed for flat drains like sinks. Using a cup plunger on a toilet gives a weak seal and poor suction.
Sources & Methodology
Plumbing methods based on standard residential plumbing practices. Flange plunger and closet auger techniques recommended by licensed plumber associations.
Last reviewed: March 20, 2026