Turn the valve clockwise
The small valve behind or beside the toilet controls water entering the tank. Do not force it if it is badly corroded.
Toilet overflow help
Overflowing Toilet Help in Hemet, California
When the bowl keeps rising, stop the water before trying anything else. Repeated flushing can turn a clog into floor damage.
How to stop the bowl from rising
Stop the tank refill
If the valve cannot be reached quickly, lifting the float in the tank may temporarily stop refilling.
Do not use nearby drains
If a tub, shower, or sink also gurgles or backs up, the problem may be farther down the drain system.
Call with the pattern
Report whether only one toilet is affected or several fixtures are involved.
Fixture clog or sewer backup?
A single toilet that overflows after flushing may have a local trap or branch clog. Multiple slow fixtures, wastewater in a tub, or repeated backups at the lowest drain may indicate a main-line problem.
✓ One toilet only
✓ Several fixtures affected
✓ Wastewater visible elsewhere
✓ Overflow started without flushing