Use a plunger

A fast, no-cost method that uses pressure and suction to dislodge soft blockages in sinks, tubs, and showers. Often the best first step before trying other methods.

Steps

1. Use a flat-bottomed cup plunger (not a flange/toilet plunger).
2. Fill the basin with enough water to submerge the plunger cup.
3. If working on a double sink, block the second drain with a wet cloth.
4. Place the plunger squarely over the drain and pump vigorously 15-20 times.
5. Pull the plunger away sharply and check if the water drains.
6. Repeat 2-3 times if needed.

Tips

• A good seal is critical — coat the plunger rim with petroleum jelly if it keeps slipping.
• Works best on soft blockages like food or soap buildup. Hair clogs usually need a drain snake.
• For bathtubs, plug the overflow opening with a wet cloth to maintain suction.