Rinse the drain with hot water. Boil at least 6 cups of hot water or several buckets filled with water. Unclog the drain and slowly pour hot water into it.
- In case you have plastic pipes, use only warm water. Avoid pouring boiling water into the drain.
Repeat. In case the water still drains slowly, repeat the process until the drain is normal.
- If the blockage continues to resist casting, you may have stuck a pile of hair. In that case consider calling a plumber, especially if the drain stops draining completely.
Use gravity and pressure to clear the drain. This is best for clogged bathtubs because it is possible to fill the bathtub with several liters of water. Fill the bathtub with hot water, remove the plug and let the pressure of all that water help to undo the obstruction.
- Make sure the pipes are not corroded.
- You will notice an improvement after 2 or 3 attempts. In case the drain is clogged with a pile of hair, you will have to manually remove the material that clogs the drain.
- These methods work best if you face the problem before the drain is completely obstructed.
- Concentrated vinegar (acetic acid) and caustic soda are sometimes used to clean drains, but both are irritants. They can cause irritation of the skin, eyes, nose and throat. Avoid direct contact with skin, eyes and clothing.
- Avoid using these methods if you have discharged commercial drain plugs into the drain. Vinegar and commercial plunger chemicals can produce hazardous vapors.