A clogged toilet is one of the most urgent household problems — and also one of the most solvable. The vast majority of clogs are in the trap or the first stretch of drain line, well within reach of a plunger or a toilet auger. Getting the technique right matters more than the tool. Here are four methods ranked from first-try to last-resort.
What changed in 2026
- Low-flow and dual-flush toilets are near-universal in new builds. They use 4.8 litres (1.28 gallons) per flush. The trade-off is that they produce less flushing force, so clogs from excess paper are more common than in older high-flow models.
- Flushable wipes are still not truly flushable. Regardless of what the packaging says, wipes remain the leading cause of residential clogs in 2026. If wipes are in the household, they go in the bin.
- Water restrictions in some regions mean the old advice of "just flush again" genuinely risks an overflow. Stop and clear the clog before reflusing.
What you need
| Method |
Tool required |
| Method 1: Plunger |
Flange plunger (not cup) |
| Method 2: Hot water + dish soap |
Boiled water cooled slightly, dish soap |
| Method 3: Baking soda + vinegar |
Standard pantry items |
| Method 4: Toilet auger |
Toilet auger (~£15–£30 / $15–$30) |
Method 1: Flange plunger (try this first)
- Check the water level — if the bowl is near-full, stop. Scooping some out with a plastic cup reduces overflow risk.
- Put on rubber gloves.
- Position the flange plunger so the rubber flap folds out into the trap opening. The flange (the extended lip) must seat inside the drain hole.
- Press down slowly first to expel the air pocket inside the plunger. A sudden push pushes air into the clog and can spray water.
- Now pump with firm, fast strokes — push down hard, pull up hard. The pull stroke is doing the real work; it breaks the clog loose.
- After 15–20 strokes, pull the plunger sharply off the drain. If the water drains, the clog is clear. Flush once slowly to confirm.
- Repeat up to three times if the first attempt partially clears it.
Method 2: Hot water and dish soap (no-tool option)
- Squirt ~50ml of dish soap into the bowl. Let it sit for 5 minutes — soap lubricates the trap.
- Heat a large pot of water to near-boiling, then let it cool for 2 minutes (very hot water can crack porcelain).
- Pour the water from waist height in a steady stream into the bowl. The pressure and heat help shift organic blockages.
- Wait 5 minutes, then try flushing.
This works best on toilet paper clogs and soft organic blockages. It rarely works on a wipes or foreign-object clog.
Method 3: Baking soda and vinegar (fizzing action)
- Pour 250ml (~1 cup) of baking soda directly into the bowl.
- Follow with 250ml (~1 cup) of white vinegar. Expect fizzing — that is normal.
- Leave for 30 minutes, then add a kettle of hot (not boiling) water.
- Flush slowly.
This is less powerful than plunging but works for mild paper clogs and helps deodorise at the same time.
Method 4: Toilet auger (for deep or stubborn clogs)
- Feed the auger cable into the bowl until it meets resistance.
- Crank the handle clockwise to drive the head through or break up the clog.
- Pull back slowly — if you feel the clog on the end, keep cranking to wind it back out rather than pushing it deeper.
- Flush with a bucket of water to test, then flush normally.
A toilet auger reaches 60–90cm into the drain — past where a plunger can act.
How to pick the right method
| Situation |
Start with |
| Standard paper clog |
Method 1 (plunger) |
| No plunger available |
Method 2 (hot water + soap) |
| Mild clog, more time |
Method 3 (baking soda + vinegar) |
| Plunger failed twice |
Method 4 (auger) |
| Repeated clogs in same toilet |
Call a plumber — drain survey needed |
| Foreign object in drain |
Call a plumber — auger can push it deeper |
Common mistakes
Using a cup plunger. A flat cup plunger is designed for flat sink drains, not the curved toilet trap. It barely seals and does almost nothing. A flange plunger costs the same and actually works.
Flushing again when clogged. A second flush fills the bowl further and risks overflow. Never reflush until the clog is confirmed clear.
Pouring boiling water directly. Thermal shock can crack the vitreous china of older toilets. Let boiling water cool for two minutes before pouring.
Using chemical drain cleaners. Products like Drano are formulated for sink drains, not toilets. In a toilet they sit in the trap doing little, and the caustic chemicals attack the wax ring seal and older PVC joints over repeated use.
What to skip
- Wire coat hangers as DIY snakes — they scratch the porcelain and rarely reach the clog anyway.
- Drain chemical products in the toilet — wrong tool for this application.
- Forcing a second flush before clearing the clog — the overflow is a much bigger problem than the clog.
FAQ
How do I know if the clog is in the toilet or the main drain?
If multiple fixtures back up when you flush (e.g., the bathtub gurgles), the blockage is in the main line — not the toilet. That requires a plumber.
Can I use a regular drain snake instead of a toilet auger?
A regular snake can scratch the porcelain. A toilet auger has a rubber sleeve to protect the bowl. Use the right tool if you are going to snake a toilet.
My toilet keeps clogging every week — is there something wrong?
Possible causes: partial build-up in the trap, a partial blockage further down the line, a low-flow toilet struggling with thick paper, or someone disposing of unsuitable items. If plunging keeps working temporarily, have a plumber camera the line.
When should I call a plumber?
Call if: the auger did not work, if you can hear bubbling in other fixtures, if water is backing up from a different drain, or if the toilet has been slow to drain for weeks.
Where to go next