Put on gloves
Remove excess water if the bowl is too full
Make sure the plunger covers the drain opening completely
Use a flange plunger if available
Keep the plunger upright and create a tight seal
Push down gently at first
Pull up firmly to create suction
Repeat steady push-and-pull motions
Plunge for 15 to 20 seconds
Check if the water drains
Repeat plunging if needed
Flush only after the clog clears
Stop if the water rises too high
Use a toilet auger if plunging does not work