Quick answer
If your toilet keeps blocking, start by using a plunger to clear the clog. If that doesn't work, try a toilet auger. Avoid flushing non-flushable items to prevent future clogs.
Confirm the symptom
- Toilet water rises when flushed
- Toilet doesn't drain completely
- Multiple flushes needed to clear water
- Clogging happens frequently, not just once
Tools and prep
- Rubber plunger
- Toilet auger (snake)
- Gloves
- Bucket (for excess water)
- Plumber's snake (optional)
- Turn off water supply valve before starting
- Wear protective gloves and eyewear
Step-by-step troubleshooting
- Use a PlungerDo: Create a tight seal over the drain hole and plunge vigorously up and down.Observe: Water level drops and starts draining.Means: Clog is partially or fully cleared.Next: Flush the toilet to test if it drains properly.
- Try a Toilet AugerDo: Insert the auger into the drain and push until you feel resistance. Rotate the handle to break up or retrieve the clog.Observe: Water begins to drain and the auger meets little resistance.Means: The clog is cleared or significantly loosened.Next: Flush the toilet to confirm the clog is gone.
- Check for BlockagesDo: Remove the toilet tank lid and check for any visible blockages in the tank or bowl.Observe: No visible blockages found.Means: The issue is likely in the drain line.Next: Proceed to inspect the P-trap or call a professional.
- Inspect the P-TrapDo: Use a flashlight to look under the toilet for the P-trap. Check for visible blockages.Observe: No blockages found in the P-trap.Means: The clog is deeper in the drain line or main sewer line.Next: Consider using a plumber's snake or calling a professional.
- Use a Plumber's SnakeDo: Feed the snake into the drain until you encounter resistance. Rotate and push to break up or retrieve the clog.Observe: Snake moves freely and water drains.Means: The clog is cleared.Next: Flush the toilet to ensure proper drainage.
- Call a ProfessionalDo: If the clog persists after trying all methods, contact a licensed plumber.Observe: No improvement after multiple attempts.Means: The clog is likely in the main sewer line or requires specialized tools.Next: End of DIY process.
Common causes
| Cause | Likelihood | Difficulty | Part often needed |
|---|---|---|---|
| Toilet paper or wipes Non-flushable items can accumulate and create blockages. | Common | Easy | None |
| Toilet paper buildup Excessive use of thick or slow-dissolving toilet paper can cause clogs. | Common | Easy | None |
| Foreign objects Toys, feminine hygiene products, or other items flushed down the toilet can cause blockages. | Sometimes | Easy–Medium | Toilet auger |
| Mineral buildup Hard water can cause mineral deposits in the drain line, restricting water flow. | Sometimes | Medium | Descaling solution |
| Tree roots Roots can infiltrate the sewer line, causing recurring blockages. | Rare | Hard | Professional root removal |
| Septic tank issues A full or malfunctioning septic tank can cause frequent toilet clogs. | Rare | Hard | Septic tank pumping |
| Improperly installed toilet A toilet not installed correctly can lead to poor drainage and frequent clogs. | Rare | Hard | Toilet installation kit |
Parts matching
Common parts needed for fixing a toilet that keeps blocking include:
- Rubber plunger
- Toilet auger
- Plumber's snake
- Descaling solution
- Toilet installation kit
Purchase high-quality tools to ensure effective clog removal and prevent future blockages.
When to call a professional
- Clog persists after using a plunger and toilet auger
- Multiple toilets or drains are affected
- Foul odors coming from the toilet or drains
- Water backup in other parts of the house
- Suspected tree root intrusion
- Septic tank issues
- Toilet is improperly installed
FAQ
What should I do if the toilet clog won't clear?
If the clog won't clear using a plunger and toilet auger, try using a plumber's snake. If that still doesn't work, contact a licensed plumber for professional assistance.
How can I prevent future toilet clogs?
Avoid flushing non-flushable items, use toilet paper that dissolves easily, and consider installing a toilet with a larger trapway for better drainage.
Can I use chemical drain cleaners for toilet clogs?
It's not recommended to use chemical drain cleaners for toilet clogs, as they can damage the toilet and plumbing system. Use mechanical methods like plunging or snaking instead.
Why does my toilet keep clogging even after clearing it?
Frequent clogging may indicate a deeper issue such as a blockage in the main sewer line, tree root intrusion, or a problem with the septic tank. Contact a professional plumber for a thorough inspection.
How often should I clean my toilet to prevent clogs?
Regular cleaning with a mild detergent can help prevent buildup. Additionally, descaling the toilet and drain line every few months can reduce mineral deposits that contribute to clogs.