1. Stop the water
Take the tank lid off and push the flapper down to seal it, then lift the float to stop the fill valve. Or simply turn the supply valve behind the toilet clockwise until it stops.
2. Do not flush again
A second flush adds another 1.6 gallons to the floor. Resist the urge.
3. Plunge correctly
Use a flange plunger (the kind with the extra rubber lip). Create a seal and push and pull firmly 10–15 times. Most simple clogs clear this way.
4. Clean up fast
Toilet water is unsanitary. Soak up water with towels, disinfect the floor and dry the area thoroughly to prevent mold.
Why toilets overflow
A clog in the toilet trap is most common. But if other drains gurgle or back up when you flush, the clog is in the main sewer line — plunging will not help and sewage may back up elsewhere. That calls for professional drain cleaning or sewer line repair.
When to call an emergency plumber
If the toilet will not stop, keeps clogging, or water is coming up through tubs and floor drains, call our 24/7 emergency plumbers. We serve every city in Pennsylvania and treat overflowing toilets as the emergency they are. For recurring problems, our toilet repair team can fix the root cause.
Get Help From a Local Pennsylvania Plumber
Patrick Chase Plumbing Co. serves every city in Pennsylvania 24/7. Call (888) 809-6756 for same-day service and upfront pricing.